13431234512 has 10 divisors (see below), whose sum is σ = 26023016898. Its totient is φ = 6715617248.

The previous prime is 13431234503. The next prime is 13431234569. The reversal of 13431234512 is 21543213431.

It can be written as a sum of positive squares in only one way, i.e., 10392579136 + 3038655376 = 101944^2 + 55124^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 419726063 + ... + 419726094.

Almost surely, 2^13431234512 is an apocalyptic number.

It is an amenable number.

13431234512 is a deficient number, since it is larger than the sum of its proper divisors (12591782386).

13431234512 is an equidigital number, since it uses as much as digits as its factorization.

13431234512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 839452165 (or 839452159 counting only the distinct ones).

The product of its digits is 8640, while the sum is 29.

Adding to 13431234512 its reverse (21543213431), we get a palindrome (34974447943).

The spelling of 13431234512 in words is "thirteen billion, four hundred thirty-one million, two hundred thirty-four thousand, five hundred twelve".