102431113028 has 24 divisors (see below), whose sum is σ = 188701128000. Its totient is φ = 48516854688.

The previous prime is 102431113027. The next prime is 102431113067. The reversal of 102431113028 is 820311134201.

It is a super-2 number, since 2×102431113028² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 102431112988 and 102431113006.

It is not an unprimeable number, because it can be changed into a prime (102431113027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1486073 + ... + 1553471.

It is an arithmetic number, because the mean of its divisors is an integer number (7862547000).

Almost surely, 2^102431113028 is an apocalyptic number.

It is an amenable number.

102431113028 is a deficient number, since it is larger than the sum of its proper divisors (86270014972).

102431113028 is a wasteful number, since it uses less digits than its factorization.

102431113028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87419 (or 87417 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 26.

Adding to 102431113028 its reverse (820311134201), we get a palindrome (922742247229).

The spelling of 102431113028 in words is "one hundred two billion, four hundred thirty-one million, one hundred thirteen thousand, twenty-eight".