102431261052 has 36 divisors (see below), whose sum is σ = 258936252120. Its totient is φ = 34142067552.

The previous prime is 102431261027. The next prime is 102431261063. The reversal of 102431261052 is 250162134201.

102431261052 is a `hidden beast` number, since 1 + 0 + 2 + 43 + 1 + 2 + 610 + 5 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-3 number, since 3×102431261052³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 825199 + ... + 941177.

It is an arithmetic number, because the mean of its divisors is an integer number (7192673670).

Almost surely, 2^102431261052 is an apocalyptic number.

102431261052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

102431261052 is an abundant number, since it is smaller than the sum of its proper divisors (156504991068).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102431261052 is a wasteful number, since it uses less digits than its factorization.

102431261052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140522 (or 140517 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

Adding to 102431261052 its reverse (250162134201), we get a palindrome (352593395253).

The spelling of 102431261052 in words is "one hundred two billion, four hundred thirty-one million, two hundred sixty-one thousand, fifty-two".