431423430320 has 40 divisors (see below), whose sum is σ = 1015756445760. Its totient is φ = 170384947200.

The previous prime is 431423430299. The next prime is 431423430341. The reversal of 431423430320 is 23034324134.

It is an interprime number because it is at equal distance from previous prime (431423430299) and next prime (431423430341).

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×431423430320² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34125281 + ... + 34137920.

It is an arithmetic number, because the mean of its divisors is an integer number (25393911144).

Almost surely, 2^431423430320 is an apocalyptic number.

431423430320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

431423430320 is an abundant number, since it is smaller than the sum of its proper divisors (584333015440).

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

431423430320 is a wasteful number, since it uses less digits than its factorization.

431423430320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68263293 (or 68263287 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 29.

Adding to 431423430320 its reverse (23034324134), we get a palindrome (454457754454).

The spelling of 431423430320 in words is "four hundred thirty-one billion, four hundred twenty-three million, four hundred thirty thousand, three hundred twenty".