102305343231 has 48 divisors (see below), whose sum is σ = 191448624640. Its totient is φ = 51123078720.

The previous prime is 102305343227. The next prime is 102305343233. The reversal of 102305343231 is 132343503201.

102305343231 is a `hidden beast` number, since 1 + 0 + 2 + 305 + 34 + 323 + 1 = 666.

It is not a de Polignac number, because 102305343231 - 2² = 102305343227 is a prime.

It is a super-2 number, since 2×102305343231² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 102305343195 and 102305343204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102305343233) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3271675 + ... + 3302796.

Almost surely, 2^102305343231 is an apocalyptic number.

102305343231 is a deficient number, since it is larger than the sum of its proper divisors (89143281409).

102305343231 is a wasteful number, since it uses less digits than its factorization.

102305343231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6574516 (or 6574513 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 27.

Adding to 102305343231 its reverse (132343503201), we get a palindrome (234648846432).

The spelling of 102305343231 in words is "one hundred two billion, three hundred five million, three hundred forty-three thousand, two hundred thirty-one".