31310020023001 has 2 divisors, whose sum is σ = 31310020023002. Its totient is φ = 31310020023000.

The previous prime is 31310020022923. The next prime is 31310020023067. The reversal of 31310020023001 is 10032002001313.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29781522990025 + 1528497032976 = 5457245^2 + 1236324^2 .

It is an emirp because it is prime and its reverse (10032002001313) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 31310020023001 - 2³¹ = 31307872539353 is a prime.

It is not a weakly prime, because it can be changed into another prime (31310020023701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15655010011500 + 15655010011501.

It is an arithmetic number, because the mean of its divisors is an integer number (15655010011501).

Almost surely, 2^{31310020023001} is an apocalyptic number.

It is an amenable number.

31310020023001 is a deficient number, since it is larger than the sum of its proper divisors (1).

31310020023001 is an equidigital number, since it uses as much as digits as its factorization.

31310020023001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 31310020023001 its reverse (10032002001313), we get a palindrome (41342022024314).

The spelling of 31310020023001 in words is "thirty-one trillion, three hundred ten billion, twenty million, twenty-three thousand, one".