400705552231 has 2 divisors, whose sum is σ = 400705552232. Its totient is φ = 400705552230.

The previous prime is 400705552199. The next prime is 400705552249. The reversal of 400705552231 is 132255507004.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 400705552231 - 2⁵ = 400705552199 is a prime.

It is a super-2 number, since 2×400705552231² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (400705552631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200352776115 + 200352776116.

It is an arithmetic number, because the mean of its divisors is an integer number (200352776116).

Almost surely, 2^400705552231 is an apocalyptic number.

400705552231 is a deficient number, since it is larger than the sum of its proper divisors (1).

400705552231 is an equidigital number, since it uses as much as digits as its factorization.

400705552231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 42000, while the sum is 34.

The spelling of 400705552231 in words is "four hundred billion, seven hundred five million, five hundred fifty-two thousand, two hundred thirty-one".