102025310231331 has 40 divisors (see below), whose sum is σ = 156533219368064. Its totient is φ = 66176085179520.

The previous prime is 102025310231323. The next prime is 102025310231333. The reversal of 102025310231331 is 133132013520201.

102025310231331 is a `hidden beast` number, since 1 + 0 + 2 + 0 + 2 + 5 + 310 + 2 + 313 + 31 = 666.

It is not a de Polignac number, because 102025310231331 - 2³ = 102025310231323 is a prime.

It is a super-2 number, since 2×102025310231331² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102025310231295 and 102025310231304.

It is not an unprimeable number, because it can be changed into a prime (102025310231333) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 80599671 + ... + 81855711.

Almost surely, 2^{102025310231331} is an apocalyptic number.

102025310231331 is a deficient number, since it is larger than the sum of its proper divisors (54507909136733).

102025310231331 is a wasteful number, since it uses less digits than its factorization.

102025310231331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1283193 (or 1283184 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

Adding to 102025310231331 its reverse (133132013520201), we get a palindrome (235157323751532).

The spelling of 102025310231331 in words is "one hundred two trillion, twenty-five billion, three hundred ten million, two hundred thirty-one thousand, three hundred thirty-one".