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232120223231 = 13131425932003
BaseRepresentation
bin1101100000101101110…
…0011000010111111111
3211012010212011002100212
43120023130120113333
512300340234120411
6254345021543035
722525104225461
oct3301334302777
9735125132325
10232120223231
118a4948a6336
1238ba0714a7b
1318b72a33020
14b33dd5c131
1560882ac68b
hex360b7185ff

232120223231 has 16 divisors (see below), whose sum is σ = 251950849920. Its totient is φ = 212572644960.

The previous prime is 232120223149. The next prime is 232120223281. The reversal of 232120223231 is 132322021232.

It is not a de Polignac number, because 232120223231 - 214 = 232120206847 is a prime.

It is a super-2 number, since 2×2321202232312 (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 232120223197 and 232120223206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (232120223281) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7237076 + ... + 7269078.

It is an arithmetic number, because the mean of its divisors is an integer number (15746928120).

Almost surely, 2232120223231 is an apocalyptic number.

232120223231 is a deficient number, since it is larger than the sum of its proper divisors (19830626689).

232120223231 is a wasteful number, since it uses less digits than its factorization.

232120223231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36406.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 232120223231 its reverse (132322021232), we get a palindrome (364442244463).

The spelling of 232120223231 in words is "two hundred thirty-two billion, one hundred twenty million, two hundred twenty-three thousand, two hundred thirty-one".

Divisors: 1 13 131 1703 4259 32003 55367 416039 557929 4192393 7253077 54501109 136300777 1771910101 17855401787 232120223231