102134320431 has 64 divisors (see below), whose sum is σ = 169694300160. Its totient is φ = 53717040000.

The previous prime is 102134320427. The next prime is 102134320439. The reversal of 102134320431 is 134023431201.

It is a happy number.

It is not a de Polignac number, because 102134320431 - 2² = 102134320427 is a prime.

It is a super-2 number, since 2×102134320431² (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 (102134320439) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1019956 + ... + 1115606.

It is an arithmetic number, because the mean of its divisors is an integer number (2651473440).

Almost surely, 2^102134320431 is an apocalyptic number.

102134320431 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

102134320431 is a deficient number, since it is larger than the sum of its proper divisors (67559979729).

102134320431 is a wasteful number, since it uses less digits than its factorization.

102134320431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95828.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 102134320431 its reverse (134023431201), we get a palindrome (236157751632).

The spelling of 102134320431 in words is "one hundred two billion, one hundred thirty-four million, three hundred twenty thousand, four hundred thirty-one".