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131222332102240 = 255853289961151
BaseRepresentation
bin11101110101100010010100…
…011111011101011001100000
3122012121201202221111201212001
4131311202110133131121200
5114144421314004232430
61143030412425013344
736432333501145351
oct3565422437353140
9565551687451761
10131222332102240
11388a2095570265
1212873925624254
13582b29c74c772
1424592a25d5d28
1510285d9b133ca
hex7758947dd660

131222332102240 has 48 divisors (see below), whose sum is σ = 310013445450240. Its totient is φ = 52488816716800.

The previous prime is 131222332102229. The next prime is 131222332102289. The reversal of 131222332102240 is 42201233222131.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 131222332102199 and 131222332102208.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 136045665 + ... + 137006815.

It is an arithmetic number, because the mean of its divisors is an integer number (6458613446880).

Almost surely, 2131222332102240 is an apocalyptic number.

131222332102240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131222332102240 is an abundant number, since it is smaller than the sum of its proper divisors (178791113348000).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131222332102240 is an equidigital number, since it uses as much as digits as its factorization.

131222332102240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1814455 (or 1814447 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 131222332102240 its reverse (42201233222131), we get a palindrome (173423565324371).

The spelling of 131222332102240 in words is "one hundred thirty-one trillion, two hundred twenty-two billion, three hundred thirty-two million, one hundred two thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 160 853289 961151 1706578 1922302 3413156 3844604 4266445 4805755 6826312 7689208 8532890 9611510 13652624 15378416 17065780 19223020 27305248 30756832 34131560 38446040 68263120 76892080 136526240 153784160 820139575639 1640279151278 3280558302556 4100697878195 6561116605112 8201395756390 13122233210224 16402791512780 26244466420448 32805583025560 65611166051120 131222332102240