31322321012013 has 16 divisors (see below), whose sum is σ = 43211348968320. Its totient is φ = 20157691784384.

The previous prime is 31322321012011. The next prime is 31322321012027. The reversal of 31322321012013 is 31021012322313.

It is a cyclic number.

It is not a de Polignac number, because 31322321012013 - 2¹ = 31322321012011 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31322321012011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33484206 + ... + 34406927.

It is an arithmetic number, because the mean of its divisors is an integer number (2700709310520).

Almost surely, 2^{31322321012013} is an apocalyptic number.

It is an amenable number.

31322321012013 is a deficient number, since it is larger than the sum of its proper divisors (11889027956307).

31322321012013 is a wasteful number, since it uses less digits than its factorization.

31322321012013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67896468.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 31322321012013 its reverse (31021012322313), we get a palindrome (62343333334326).

The spelling of 31322321012013 in words is "thirty-one trillion, three hundred twenty-two billion, three hundred twenty-one million, twelve thousand, thirteen".