31101223211129 has 2 divisors, whose sum is σ = 31101223211130. Its totient is φ = 31101223211128.

The previous prime is 31101223211087. The next prime is 31101223211159. The reversal of 31101223211129 is 92111232210113.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15815351829904 + 15285871381225 = 3976852^2 + 3909715^2 .

It is a cyclic number.

It is not a de Polignac number, because 31101223211129 - 2²⁸ = 31100954775673 is a prime.

It is a super-2 number, since 2×31101223211129² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (31101223211159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15550611605564 + 15550611605565.

It is an arithmetic number, because the mean of its divisors is an integer number (15550611605565).

Almost surely, 2^{31101223211129} is an apocalyptic number.

It is an amenable number.

31101223211129 is a deficient number, since it is larger than the sum of its proper divisors (1).

31101223211129 is an equidigital number, since it uses as much as digits as its factorization.

31101223211129 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 29.

The spelling of 31101223211129 in words is "thirty-one trillion, one hundred one billion, two hundred twenty-three million, two hundred eleven thousand, one hundred twenty-nine".