133631564413031 has 2 divisors, whose sum is σ = 133631564413032. Its totient is φ = 133631564413030.

The previous prime is 133631564413027. The next prime is 133631564413129. The reversal of 133631564413031 is 130314465136331.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 133631564413031 - 2² = 133631564413027 is a prime.

It is a super-2 number, since 2×133631564413031² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133631564413021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66815782206515 + 66815782206516.

It is an arithmetic number, because the mean of its divisors is an integer number (66815782206516).

Almost surely, 2^{133631564413031} is an apocalyptic number.

133631564413031 is a deficient number, since it is larger than the sum of its proper divisors (1).

133631564413031 is an equidigital number, since it uses as much as digits as its factorization.

133631564413031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 699840, while the sum is 44.

The spelling of 133631564413031 in words is "one hundred thirty-three trillion, six hundred thirty-one billion, five hundred sixty-four million, four hundred thirteen thousand, thirty-one".