31322012021123 has 2 divisors, whose sum is σ = 31322012021124. Its totient is φ = 31322012021122.

The previous prime is 31322012021087. The next prime is 31322012021149. The reversal of 31322012021123 is 32112021022313.

It is a strong prime.

It is an emirp because it is prime and its reverse (32112021022313) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 31322012021123 - 2¹⁴ = 31322012004739 is a prime.

It is a super-2 number, since 2×31322012021123² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (31322012021623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15661006010561 + 15661006010562.

It is an arithmetic number, because the mean of its divisors is an integer number (15661006010562).

Almost surely, 2^{31322012021123} is an apocalyptic number.

31322012021123 is a deficient number, since it is larger than the sum of its proper divisors (1).

31322012021123 is an equidigital number, since it uses as much as digits as its factorization.

31322012021123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 31322012021123 its reverse (32112021022313), we get a palindrome (63434033043436).

The spelling of 31322012021123 in words is "thirty-one trillion, three hundred twenty-two billion, twelve million, twenty-one thousand, one hundred twenty-three".