31321104103049 has 2 divisors, whose sum is σ = 31321104103050. Its totient is φ = 31321104103048.

The previous prime is 31321104102989. The next prime is 31321104103139. The reversal of 31321104103049 is 94030140112313.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28874717190400 + 2446386912649 = 5373520^2 + 1564093^2 .

It is a cyclic number.

It is not a de Polignac number, because 31321104103049 - 2²⁰ = 31321103054473 is a prime.

It is a super-2 number, since 2×31321104103049² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (31321107103049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15660552051524 + 15660552051525.

It is an arithmetic number, because the mean of its divisors is an integer number (15660552051525).

Almost surely, 2^{31321104103049} is an apocalyptic number.

It is an amenable number.

31321104103049 is a deficient number, since it is larger than the sum of its proper divisors (1).

31321104103049 is an equidigital number, since it uses as much as digits as its factorization.

31321104103049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 32.

The spelling of 31321104103049 in words is "thirty-one trillion, three hundred twenty-one billion, one hundred four million, one hundred three thousand, forty-nine".