31332132013 has 32 divisors (see below), whose sum is σ = 41101724160. Its totient is φ = 23177318400.

The previous prime is 31332132011. The next prime is 31332132031. The reversal of 31332132013 is 31023123313.

It is a cyclic number.

It is not a de Polignac number, because 31332132013 - 2¹ = 31332132011 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31332132011) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 166533 + ... + 300661.

It is an arithmetic number, because the mean of its divisors is an integer number (1284428880).

Almost surely, 2^31332132013 is an apocalyptic number.

It is an amenable number.

31332132013 is a deficient number, since it is larger than the sum of its proper divisors (9769592147).

31332132013 is a wasteful number, since it uses less digits than its factorization.

31332132013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134317.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 31332132013 its reverse (31023123313), we get a palindrome (62355255326).

The spelling of 31332132013 in words is "thirty-one billion, three hundred thirty-two million, one hundred thirty-two thousand, thirteen".