102331111231 has 2 divisors, whose sum is σ = 102331111232. Its totient is φ = 102331111230.

The previous prime is 102331111229. The next prime is 102331111237. The reversal of 102331111231 is 132111133201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 102331111231 - 2¹ = 102331111229 is a prime.

It is a super-2 number, since 2×102331111231² (a number of 23 digits) contains 22 as substring.

Together with 102331111229, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 102331111199 and 102331111208.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102331111237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51165555615 + 51165555616.

It is an arithmetic number, because the mean of its divisors is an integer number (51165555616).

Almost surely, 2^102331111231 is an apocalyptic number.

102331111231 is a deficient number, since it is larger than the sum of its proper divisors (1).

102331111231 is an equidigital number, since it uses as much as digits as its factorization.

102331111231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 102331111231 its reverse (132111133201), we get a palindrome (234442244432).

The spelling of 102331111231 in words is "one hundred two billion, three hundred thirty-one million, one hundred eleven thousand, two hundred thirty-one".