400333131012 has 24 divisors (see below), whose sum is σ = 936463573696. Its totient is φ = 133108243488.

The previous prime is 400333131007. The next prime is 400333131047. The reversal of 400333131012 is 210131333004.

It is a super-2 number, since 2×400333131012² (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 400333131012.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42011728 + ... + 42021255.

Almost surely, 2^400333131012 is an apocalyptic number.

It is an amenable number.

400333131012 is an abundant number, since it is smaller than the sum of its proper divisors (536130442684).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

400333131012 is a wasteful number, since it uses less digits than its factorization.

400333131012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84033387 (or 84033385 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 400333131012 its reverse (210131333004), we get a palindrome (610464464016).

The spelling of 400333131012 in words is "four hundred billion, three hundred thirty-three million, one hundred thirty-one thousand, twelve".