31312212004153 has 2 divisors, whose sum is σ = 31312212004154. Its totient is φ = 31312212004152.

The previous prime is 31312212004111. The next prime is 31312212004159. The reversal of 31312212004153 is 35140021221313.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28673968716864 + 2638243287289 = 5354808^2 + 1624267^2 .

It is a cyclic number.

It is not a de Polignac number, because 31312212004153 - 2⁹ = 31312212003641 is a prime.

It is not a weakly prime, because it can be changed into another prime (31312212004159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15656106002076 + 15656106002077.

It is an arithmetic number, because the mean of its divisors is an integer number (15656106002077).

Almost surely, 2^{31312212004153} is an apocalyptic number.

It is an amenable number.

31312212004153 is a deficient number, since it is larger than the sum of its proper divisors (1).

31312212004153 is an equidigital number, since it uses as much as digits as its factorization.

31312212004153 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 28.

Adding to 31312212004153 its reverse (35140021221313), we get a palindrome (66452233225466).

The spelling of 31312212004153 in words is "thirty-one trillion, three hundred twelve billion, two hundred twelve million, four thousand, one hundred fifty-three".