31013222153 has 2 divisors, whose sum is σ = 31013222154. Its totient is φ = 31013222152.

The previous prime is 31013222117. The next prime is 31013222183. The reversal of 31013222153 is 35122231013.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30113702089 + 899520064 = 173533^2 + 29992^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31013222153 is a prime.

It is a super-2 number, since 2×31013222153² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (31013222183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15506611076 + 15506611077.

It is an arithmetic number, because the mean of its divisors is an integer number (15506611077).

Almost surely, 2^31013222153 is an apocalyptic number.

It is an amenable number.

31013222153 is a deficient number, since it is larger than the sum of its proper divisors (1).

31013222153 is an equidigital number, since it uses as much as digits as its factorization.

31013222153 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1080, while the sum is 23.

Adding to 31013222153 its reverse (35122231013), we get a palindrome (66135453166).

The spelling of 31013222153 in words is "thirty-one billion, thirteen million, two hundred twenty-two thousand, one hundred fifty-three".