12431020134 has 16 divisors (see below), whose sum is σ = 26774505072. Its totient is φ = 3824929248.

The previous prime is 12431020127. The next prime is 12431020171. The reversal of 12431020134 is 43102013421.

It is a self number, because there is not a number n which added to its sum of digits gives 12431020134.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79685949 + ... + 79686104.

It is an arithmetic number, because the mean of its divisors is an integer number (1673406567).

Almost surely, 2^12431020134 is an apocalyptic number.

12431020134 is an abundant number, since it is smaller than the sum of its proper divisors (14343484938).

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

12431020134 is a wasteful number, since it uses less digits than its factorization.

12431020134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159372071.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 12431020134 its reverse (43102013421), we get a palindrome (55533033555).

The spelling of 12431020134 in words is "twelve billion, four hundred thirty-one million, twenty thousand, one hundred thirty-four".