31303200011321 has 16 divisors (see below), whose sum is σ = 35870830611840. Its totient is φ = 26759530003200.

The previous prime is 31303200011261. The next prime is 31303200011407. The reversal of 31303200011321 is 12311000230313.

It is a cyclic number.

It is not a de Polignac number, because 31303200011321 - 2⁶ = 31303200011257 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31303200011293 and 31303200011302.

It is not an unprimeable number, because it can be changed into a prime (31303200011621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14445635 + ... + 16470663.

It is an arithmetic number, because the mean of its divisors is an integer number (2241926913240).

Almost surely, 2^{31303200011321} is an apocalyptic number.

It is an amenable number.

31303200011321 is a deficient number, since it is larger than the sum of its proper divisors (4567630600519).

31303200011321 is a wasteful number, since it uses less digits than its factorization.

31303200011321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2030944.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 31303200011321 its reverse (12311000230313), we get a palindrome (43614200241634).

The spelling of 31303200011321 in words is "thirty-one trillion, three hundred three billion, two hundred million, eleven thousand, three hundred twenty-one".