40121431344 has 30 divisors (see below), whose sum is σ = 112284283956. Its totient is φ = 13373810400.

The previous prime is 40121431321. The next prime is 40121431387. The reversal of 40121431344 is 44313412104.

40121431344 is a `hidden beast` number, since 401 + 214 + 3 + 1 + 3 + 44 = 666.

40121431344 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 139310382 + ... + 139310669.

Almost surely, 2^40121431344 is an apocalyptic number.

It is an amenable number.

40121431344 is an abundant number, since it is smaller than the sum of its proper divisors (72162852612).

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

40121431344 is a wasteful number, since it uses less digits than its factorization.

40121431344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278621065 (or 278621056 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 40121431344 its reverse (44313412104), we get a palindrome (84434843448).

The spelling of 40121431344 in words is "forty billion, one hundred twenty-one million, four hundred thirty-one thousand, three hundred forty-four".