920255632631 has 2 divisors, whose sum is σ = 920255632632. Its totient is φ = 920255632630.

The previous prime is 920255632559. The next prime is 920255632717. The reversal of 920255632631 is 136236552029.

920255632631 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (136236552029) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-920255632631 is a prime.

It is a super-2 number, since 2×920255632631² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (920255632531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 460127816315 + 460127816316.

It is an arithmetic number, because the mean of its divisors is an integer number (460127816316).

Almost surely, 2^920255632631 is an apocalyptic number.

920255632631 is a deficient number, since it is larger than the sum of its proper divisors (1).

920255632631 is an equidigital number, since it uses as much as digits as its factorization.

920255632631 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 583200, while the sum is 44.

The spelling of 920255632631 in words is "nine hundred twenty billion, two hundred fifty-five million, six hundred thirty-two thousand, six hundred thirty-one".