31103032212971 has 2 divisors, whose sum is σ = 31103032212972. Its totient is φ = 31103032212970.

The previous prime is 31103032212871. The next prime is 31103032213003. The reversal of 31103032212971 is 17921223030113.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31103032212971 is a prime.

It is a super-2 number, since 2×31103032212971² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (31103032212271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15551516106485 + 15551516106486.

It is an arithmetic number, because the mean of its divisors is an integer number (15551516106486).

Almost surely, 2^{31103032212971} is an apocalyptic number.

31103032212971 is a deficient number, since it is larger than the sum of its proper divisors (1).

31103032212971 is an equidigital number, since it uses as much as digits as its factorization.

31103032212971 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13608, while the sum is 35.

The spelling of 31103032212971 in words is "thirty-one trillion, one hundred three billion, thirty-two million, two hundred twelve thousand, nine hundred seventy-one".