13131312332 has 12 divisors (see below), whose sum is σ = 22982193696. Its totient is φ = 6564971280.

The previous prime is 13131312287. The next prime is 13131312361. The reversal of 13131312332 is 23321313131.

It is a junction number, because it is equal to n+sod(n) for n = 13131312298 and 13131312307.

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, 126803 + ... + 205770.

It is an arithmetic number, because the mean of its divisors is an integer number (1915182808).

Almost surely, 2^13131312332 is an apocalyptic number.

It is an amenable number.

13131312332 is a deficient number, since it is larger than the sum of its proper divisors (9850881364).

13131312332 is a wasteful number, since it uses less digits than its factorization.

13131312332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 342448 (or 342446 counting only the distinct ones).

The product of its digits is 972, while the sum is 23.

Adding to 13131312332 its reverse (23321313131), we get a palindrome (36452625463).

The spelling of 13131312332 in words is "thirteen billion, one hundred thirty-one million, three hundred twelve thousand, three hundred thirty-two".