400111231143 has 16 divisors (see below), whose sum is σ = 574653824640. Its totient is φ = 246164381664.

The previous prime is 400111231133. The next prime is 400111231147. The reversal of 400111231143 is 341132111004.

400111231143 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 400111231143 - 2⁵ = 400111231111 is a prime.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 1038321 + ... + 1370522.

It is an arithmetic number, because the mean of its divisors is an integer number (35915864040).

Almost surely, 2^400111231143 is an apocalyptic number.

400111231143 is a deficient number, since it is larger than the sum of its proper divisors (174542593497).

400111231143 is a wasteful number, since it uses less digits than its factorization.

400111231143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2413118.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 400111231143 its reverse (341132111004), we get a palindrome (741243342147).

The spelling of 400111231143 in words is "four hundred billion, one hundred eleven million, two hundred thirty-one thousand, one hundred forty-three".