31321112002153 has 2 divisors, whose sum is σ = 31321112002154. Its totient is φ = 31321112002152.

The previous prime is 31321112002057. The next prime is 31321112002171. The reversal of 31321112002153 is 35120021112313.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29538214098649 + 1782897903504 = 5434907^2 + 1335252^2 .

It is a cyclic number.

It is not a de Polignac number, because 31321112002153 - 2³⁷ = 31183673048681 is a prime.

It is not a weakly prime, because it can be changed into another prime (31321112002183) 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, 15660556001076 + 15660556001077.

It is an arithmetic number, because the mean of its divisors is an integer number (15660556001077).

Almost surely, 2^{31321112002153} is an apocalyptic number.

It is an amenable number.

31321112002153 is a deficient number, since it is larger than the sum of its proper divisors (1).

31321112002153 is an equidigital number, since it uses as much as digits as its factorization.

31321112002153 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 25.

Adding to 31321112002153 its reverse (35120021112313), we get a palindrome (66441133114466).

The spelling of 31321112002153 in words is "thirty-one trillion, three hundred twenty-one billion, one hundred twelve million, two thousand, one hundred fifty-three".