31313200213123 has 2 divisors, whose sum is σ = 31313200213124. Its totient is φ = 31313200213122.

The previous prime is 31313200213093. The next prime is 31313200213153. The reversal of 31313200213123 is 32131200231313.

It is a balanced prime because it is at equal distance from previous prime (31313200213093) and next prime (31313200213153).

It is a cyclic number.

It is not a de Polignac number, because 31313200213123 - 2⁵ = 31313200213091 is a prime.

It is not a weakly prime, because it can be changed into another prime (31313200213153) 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 as a sum of consecutive naturals, namely, 15656600106561 + 15656600106562.

It is an arithmetic number, because the mean of its divisors is an integer number (15656600106562).

Almost surely, 2^{31313200213123} is an apocalyptic number.

31313200213123 is a deficient number, since it is larger than the sum of its proper divisors (1).

31313200213123 is an equidigital number, since it uses as much as digits as its factorization.

31313200213123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 31313200213123 its reverse (32131200231313), we get a palindrome (63444400444436).

The spelling of 31313200213123 in words is "thirty-one trillion, three hundred thirteen billion, two hundred million, two hundred thirteen thousand, one hundred twenty-three".