400343101124 has 24 divisors (see below), whose sum is σ = 731153851008. Its totient is φ = 191444204160.

The previous prime is 400343101069. The next prime is 400343101133. The reversal of 400343101124 is 421101343004.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a self number, because there is not a number n which added to its sum of digits gives 400343101124.

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, 466169 + ... + 1008959.

It is an arithmetic number, because the mean of its divisors is an integer number (30464743792).

Almost surely, 2^400343101124 is an apocalyptic number.

It is an amenable number.

400343101124 is a deficient number, since it is larger than the sum of its proper divisors (330810749884).

400343101124 is a wasteful number, since it uses less digits than its factorization.

400343101124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 550835 (or 550833 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 400343101124 its reverse (421101343004), we get a palindrome (821444444128).

The spelling of 400343101124 in words is "four hundred billion, three hundred forty-three million, one hundred one thousand, one hundred twenty-four".