401202131044457 has 2 divisors, whose sum is σ = 401202131044458. Its totient is φ = 401202131044456.

The previous prime is 401202131044399. The next prime is 401202131044607. The reversal of 401202131044457 is 754440131202104.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 388016089119376 + 13186041925081 = 19698124^2 + 3631259^2 .

It is a cyclic number.

It is not a de Polignac number, because 401202131044457 - 2²⁸ = 401201862609001 is a prime.

It is a super-2 number, since 2×401202131044457² (a number of 30 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 401202131044457.

It is not a weakly prime, because it can be changed into another prime (401202131043457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200601065522228 + 200601065522229.

It is an arithmetic number, because the mean of its divisors is an integer number (200601065522229).

Almost surely, 2^{401202131044457} is an apocalyptic number.

It is an amenable number.

401202131044457 is a deficient number, since it is larger than the sum of its proper divisors (1).

401202131044457 is an equidigital number, since it uses as much as digits as its factorization.

401202131044457 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 107520, while the sum is 38.

The spelling of 401202131044457 in words is "four hundred one trillion, two hundred two billion, one hundred thirty-one million, forty-four thousand, four hundred fifty-seven".