231040401144 has 64 divisors (see below), whose sum is σ = 698945760000. Its totient is φ = 62128510464.

The previous prime is 231040401133. The next prime is 231040401167. The reversal of 231040401144 is 441104040132.

231040401144 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40445394 + ... + 40451105.

It is an arithmetic number, because the mean of its divisors is an integer number (10921027500).

Almost surely, 2^231040401144 is an apocalyptic number.

231040401144 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

231040401144 is an abundant number, since it is smaller than the sum of its proper divisors (467905358856).

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

231040401144 is a wasteful number, since it uses less digits than its factorization.

231040401144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80896532 (or 80896528 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 231040401144 its reverse (441104040132), we get a palindrome (672144441276).

The spelling of 231040401144 in words is "two hundred thirty-one billion, forty million, four hundred one thousand, one hundred forty-four".