400307706123 has 32 divisors (see below), whose sum is σ = 576100245504. Its totient is φ = 245786752512.

The previous prime is 400307706107. The next prime is 400307706131. The reversal of 400307706123 is 321607703004.

It is not a de Polignac number, because 400307706123 - 2⁴ = 400307706107 is a prime.

It is a super-2 number, since 2×400307706123² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (400307706143) 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 in 31 ways as a sum of consecutive naturals, for example, 72740790 + ... + 72746292.

It is an arithmetic number, because the mean of its divisors is an integer number (18003132672).

Almost surely, 2^400307706123 is an apocalyptic number.

400307706123 is a deficient number, since it is larger than the sum of its proper divisors (175792539381).

400307706123 is a wasteful number, since it uses less digits than its factorization.

400307706123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9395.

The product of its (nonzero) digits is 21168, while the sum is 33.

The spelling of 400307706123 in words is "four hundred billion, three hundred seven million, seven hundred six thousand, one hundred twenty-three".