431121056 has 12 divisors (see below), whose sum is σ = 848769642. Its totient is φ = 215560512.

The previous prime is 431121011. The next prime is 431121101. The reversal of 431121056 is 650121134.

It is an interprime number because it is at equal distance from previous prime (431121011) and next prime (431121101).

It can be written as a sum of positive squares in only one way, i.e., 333427600 + 97693456 = 18260^2 + 9884^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6736235 + ... + 6736298.

Almost surely, 2^431121056 is an apocalyptic number.

It is an amenable number.

431121056 is a deficient number, since it is larger than the sum of its proper divisors (417648586).

431121056 is a wasteful number, since it uses less digits than its factorization.

431121056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13472543 (or 13472535 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 431121056 is about 20763.4548185026. The cubic root of 431121056 is about 755.4395966345.

The spelling of 431121056 in words is "four hundred thirty-one million, one hundred twenty-one thousand, fifty-six".