102512877831 has 32 divisors (see below), whose sum is σ = 186918072320. Its totient is φ = 54072725472.

The previous prime is 102512877829. The next prime is 102512877833. The reversal of 102512877831 is 138778215201.

It is an interprime number because it is at equal distance from previous prime (102512877829) and next prime (102512877833).

It is not a de Polignac number, because 102512877831 - 2¹ = 102512877829 is a prime.

It is a super-2 number, since 2×102512877831² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102512877833) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20858935 + ... + 20863848.

It is an arithmetic number, because the mean of its divisors is an integer number (5841189760).

Almost surely, 2^102512877831 is an apocalyptic number.

102512877831 is a deficient number, since it is larger than the sum of its proper divisors (84405194489).

102512877831 is a wasteful number, since it uses less digits than its factorization.

102512877831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41722812 (or 41722806 counting only the distinct ones).

The product of its (nonzero) digits is 188160, while the sum is 45.

The spelling of 102512877831 in words is "one hundred two billion, five hundred twelve million, eight hundred seventy-seven thousand, eight hundred thirty-one".