20131315132 has 12 divisors (see below), whose sum is σ = 35234559360. Its totient is φ = 10064298176.

The previous prime is 20131315097. The next prime is 20131315147. The reversal of 20131315132 is 23151313102.

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, 306157 + ... + 366052.

It is an arithmetic number, because the mean of its divisors is an integer number (2936213280).

Almost surely, 2^20131315132 is an apocalyptic number.

It is an amenable number.

20131315132 is a deficient number, since it is larger than the sum of its proper divisors (15103244228).

20131315132 is a wasteful number, since it uses less digits than its factorization.

20131315132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 679700 (or 679698 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 22.

Adding to 20131315132 its reverse (23151313102), we get a palindrome (43282628234).

The spelling of 20131315132 in words is "twenty billion, one hundred thirty-one million, three hundred fifteen thousand, one hundred thirty-two".