31322131153 has 2 divisors, whose sum is σ = 31322131154. Its totient is φ = 31322131152.

The previous prime is 31322131133. The next prime is 31322131177. The reversal of 31322131153 is 35113122313.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31306701969 + 15429184 = 176937^2 + 3928^2 .

It is a cyclic number.

It is not a de Polignac number, because 31322131153 - 2⁵ = 31322131121 is a prime.

It is not a weakly prime, because it can be changed into another prime (31322131133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15661065576 + 15661065577.

It is an arithmetic number, because the mean of its divisors is an integer number (15661065577).

Almost surely, 2^31322131153 is an apocalyptic number.

It is an amenable number.

31322131153 is a deficient number, since it is larger than the sum of its proper divisors (1).

31322131153 is an equidigital number, since it uses as much as digits as its factorization.

31322131153 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1620, while the sum is 25.

Adding to 31322131153 its reverse (35113122313), we get a palindrome (66435253466).

The spelling of 31322131153 in words is "thirty-one billion, three hundred twenty-two million, one hundred thirty-one thousand, one hundred fifty-three".