102387634431 has 32 divisors (see below), whose sum is σ = 143359819008. Its totient is φ = 64936442880.

The previous prime is 102387634423. The next prime is 102387634439. The reversal of 102387634431 is 134436783201.

It is an interprime number because it is at equal distance from previous prime (102387634423) and next prime (102387634439).

It is not a de Polignac number, because 102387634431 - 2³ = 102387634423 is a prime.

It is a super-2 number, since 2×102387634431² (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 (102387634439) 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, 836376 + ... + 950946.

It is an arithmetic number, because the mean of its divisors is an integer number (4479994344).

Almost surely, 2^102387634431 is an apocalyptic number.

102387634431 is a deficient number, since it is larger than the sum of its proper divisors (40972184577).

102387634431 is a wasteful number, since it uses less digits than its factorization.

102387634431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114791.

The product of its (nonzero) digits is 290304, while the sum is 42.

The spelling of 102387634431 in words is "one hundred two billion, three hundred eighty-seven million, six hundred thirty-four thousand, four hundred thirty-one".