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131121332230 = 2573750625997
BaseRepresentation
bin111101000011101110…
…0001100000000000110
3110112110001220211021011
41322013130030000012
54122014030112410
6140123013112434
712321210635350
oct1720734140006
9415401824234
10131121332230
1150676634689
12214b432871a
13c4982b4125
1464bc39c0d0
15362651018a
hex1e8770c006

131121332230 has 32 divisors (see below), whose sum is σ = 277025461056. Its totient is φ = 43740860544.

The previous prime is 131121332191. The next prime is 131121332281. The reversal of 131121332230 is 32233121131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25310409 + ... + 25315588.

It is an arithmetic number, because the mean of its divisors is an integer number (8657045658).

Almost surely, 2131121332230 is an apocalyptic number.

131121332230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131121332230 is an abundant number, since it is smaller than the sum of its proper divisors (145904128826).

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

131121332230 is a wasteful number, since it uses less digits than its factorization.

131121332230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50626048.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 131121332230 its reverse (32233121131), we get a palindrome (163354453361).

The spelling of 131121332230 in words is "one hundred thirty-one billion, one hundred twenty-one million, three hundred thirty-two thousand, two hundred thirty".

Divisors: 1 2 5 7 10 14 35 37 70 74 185 259 370 518 1295 2590 50625997 101251994 253129985 354381979 506259970 708763958 1771909895 1873161889 3543819790 3746323778 9365809445 13112133223 18731618890 26224266446 65560666115 131121332230