401268589331 has 2 divisors, whose sum is σ = 401268589332. Its totient is φ = 401268589330.

The previous prime is 401268589321. The next prime is 401268589409. The reversal of 401268589331 is 133985862104.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 401268589331 - 2¹⁰ = 401268588307 is a prime.

It is a super-2 number, since 2×401268589331² (a number of 24 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 401268589331.

It is not a weakly prime, because it can be changed into another prime (401268589301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200634294665 + 200634294666.

It is an arithmetic number, because the mean of its divisors is an integer number (200634294666).

Almost surely, 2^401268589331 is an apocalyptic number.

401268589331 is a deficient number, since it is larger than the sum of its proper divisors (1).

401268589331 is an equidigital number, since it uses as much as digits as its factorization.

401268589331 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1244160, while the sum is 50.

The spelling of 401268589331 in words is "four hundred one billion, two hundred sixty-eight million, five hundred eighty-nine thousand, three hundred thirty-one".