31210122040049 has 2 divisors, whose sum is σ = 31210122040050. Its totient is φ = 31210122040048.

The previous prime is 31210122039991. The next prime is 31210122040087. The reversal of 31210122040049 is 94004022101213.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28776444039424 + 2433678000625 = 5364368^2 + 1560025^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31210122040049 is a prime.

It is not a weakly prime, because it can be changed into another prime (31210122060049) 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, 15605061020024 + 15605061020025.

It is an arithmetic number, because the mean of its divisors is an integer number (15605061020025).

Almost surely, 2^{31210122040049} is an apocalyptic number.

It is an amenable number.

31210122040049 is a deficient number, since it is larger than the sum of its proper divisors (1).

31210122040049 is an equidigital number, since it uses as much as digits as its factorization.

31210122040049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 29.

The spelling of 31210122040049 in words is "thirty-one trillion, two hundred ten billion, one hundred twenty-two million, forty thousand, forty-nine".