102131225464 has 16 divisors (see below), whose sum is σ = 201574787400. Its totient is φ = 48377948832.

The previous prime is 102131225453. The next prime is 102131225501. The reversal of 102131225464 is 464522131201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 335957827 + ... + 335958130.

Almost surely, 2^102131225464 is an apocalyptic number.

It is an amenable number.

102131225464 is a deficient number, since it is larger than the sum of its proper divisors (99443561936).

102131225464 is a wasteful number, since it uses less digits than its factorization.

102131225464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 671915982 (or 671915978 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 31.

Adding to 102131225464 its reverse (464522131201), we get a palindrome (566653356665).

The spelling of 102131225464 in words is "one hundred two billion, one hundred thirty-one million, two hundred twenty-five thousand, four hundred sixty-four".