400313132344091 has 2 divisors, whose sum is σ = 400313132344092. Its totient is φ = 400313132344090.

The previous prime is 400313132344049. The next prime is 400313132344163. The reversal of 400313132344091 is 190443231313004.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 400313132344091 - 2²⁶ = 400313065235227 is a prime.

It is not a weakly prime, because it can be changed into another prime (400313132341091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200156566172045 + 200156566172046.

It is an arithmetic number, because the mean of its divisors is an integer number (200156566172046).

Almost surely, 2^{400313132344091} is an apocalyptic number.

400313132344091 is a deficient number, since it is larger than the sum of its proper divisors (1).

400313132344091 is an equidigital number, since it uses as much as digits as its factorization.

400313132344091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 93312, while the sum is 38.

Adding to 400313132344091 its reverse (190443231313004), we get a palindrome (590756363657095).

The spelling of 400313132344091 in words is "four hundred trillion, three hundred thirteen billion, one hundred thirty-two million, three hundred forty-four thousand, ninety-one".