431401121304 has 32 divisors (see below), whose sum is σ = 1079406900720. Its totient is φ = 143679827456.

The previous prime is 431401121279. The next prime is 431401121309. The reversal of 431401121304 is 403121104134.

It is a super-2 number, since 2×431401121304² (a number of 24 digits) contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431401121309) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7504917 + ... + 7562180.

Almost surely, 2^431401121304 is an apocalyptic number.

It is an amenable number.

431401121304 is an abundant number, since it is smaller than the sum of its proper divisors (648005779416).

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

431401121304 is a wasteful number, since it uses less digits than its factorization.

431401121304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15068299 (or 15068295 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 431401121304 its reverse (403121104134), we get a palindrome (834522225438).

The spelling of 431401121304 in words is "four hundred thirty-one billion, four hundred one million, one hundred twenty-one thousand, three hundred four".