400423112311 has 2 divisors, whose sum is σ = 400423112312. Its totient is φ = 400423112310.

The previous prime is 400423112303. The next prime is 400423112357. The reversal of 400423112311 is 113211324004.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 400423112311 - 2³ = 400423112303 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (400423112381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200211556155 + 200211556156.

It is an arithmetic number, because the mean of its divisors is an integer number (200211556156).

Almost surely, 2^400423112311 is an apocalyptic number.

400423112311 is a deficient number, since it is larger than the sum of its proper divisors (1).

400423112311 is an equidigital number, since it uses as much as digits as its factorization.

400423112311 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 400423112311 its reverse (113211324004), we get a palindrome (513634436315).

The spelling of 400423112311 in words is "four hundred billion, four hundred twenty-three million, one hundred twelve thousand, three hundred eleven".