31321033323013 has 8 divisors (see below), whose sum is σ = 36627919368128. Its totient is φ = 26222260456224.

The previous prime is 31321033322941. The next prime is 31321033323037. The reversal of 31321033323013 is 31032333012313.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 31321033323013 - 2¹³ = 31321033314821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31321033329013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52028294256 + ... + 52028294857.

It is an arithmetic number, because the mean of its divisors is an integer number (4578489921016).

Almost surely, 2^{31321033323013} is an apocalyptic number.

It is an amenable number.

31321033323013 is a deficient number, since it is larger than the sum of its proper divisors (5306886045115).

31321033323013 is a wasteful number, since it uses less digits than its factorization.

31321033323013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104056589163.

The product of its (nonzero) digits is 8748, while the sum is 28.

Adding to 31321033323013 its reverse (31032333012313), we get a palindrome (62353366335326).

The spelling of 31321033323013 in words is "thirty-one trillion, three hundred twenty-one billion, thirty-three million, three hundred twenty-three thousand, thirteen".