400111231144 has 16 divisors (see below), whose sum is σ = 750225042900. Its totient is φ = 200051219712.

The previous prime is 400111231133. The next prime is 400111231147. The reversal of 400111231144 is 441132111004.

It can be written as a sum of positive squares in 2 ways, for example, as 398577568900 + 1533662244 = 631330^2 + 39162^2 .

It is not an unprimeable number, because it can be changed into a prime (400111231147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 145147 + ... + 906250.

Almost surely, 2^400111231144 is an apocalyptic number.

It is an amenable number.

400111231144 is a deficient number, since it is larger than the sum of its proper divisors (350113811756).

400111231144 is a wasteful number, since it uses less digits than its factorization.

400111231144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1098972 (or 1098968 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 400111231144 its reverse (441132111004), we get a palindrome (841243342148).

The spelling of 400111231144 in words is "four hundred billion, one hundred eleven million, two hundred thirty-one thousand, one hundred forty-four".