31311313010321 has 8 divisors (see below), whose sum is σ = 31334188354560. Its totient is φ = 31288439219328.

The previous prime is 31311313010303. The next prime is 31311313010323. The reversal of 31311313010321 is 12301031311313.

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

It is a cyclic number.

It is not a de Polignac number, because 31311313010321 - 2³⁴ = 31294133141137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31311313010323) 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, 41598305 + ... + 42344321.

It is an arithmetic number, because the mean of its divisors is an integer number (3916773544320).

Almost surely, 2^{31311313010321} is an apocalyptic number.

It is an amenable number.

31311313010321 is a deficient number, since it is larger than the sum of its proper divisors (22875344239).

31311313010321 is a wasteful number, since it uses less digits than its factorization.

31311313010321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 776623.

The product of its (nonzero) digits is 486, while the sum is 23.

Adding to 31311313010321 its reverse (12301031311313), we get a palindrome (43612344321634).

The spelling of 31311313010321 in words is "thirty-one trillion, three hundred eleven billion, three hundred thirteen million, ten thousand, three hundred twenty-one".