431213233444 has 48 divisors (see below), whose sum is σ = 871468496640. Its totient is φ = 182868756480.

The previous prime is 431213233421. The next prime is 431213233453. The reversal of 431213233444 is 444332312134.

It is a super-2 number, since 2×431213233444² (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 15 ways as a sum of consecutive naturals, for example, 22345752 + ... + 22365040.

It is an arithmetic number, because the mean of its divisors is an integer number (18155593680).

Almost surely, 2^431213233444 is an apocalyptic number.

It is an amenable number.

431213233444 is an abundant number, since it is smaller than the sum of its proper divisors (440255263196).

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

431213233444 is a wasteful number, since it uses less digits than its factorization.

431213233444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27628 (or 27626 counting only the distinct ones).

The product of its digits is 82944, while the sum is 34.

Adding to 431213233444 its reverse (444332312134), we get a palindrome (875545545578).

The spelling of 431213233444 in words is "four hundred thirty-one billion, two hundred thirteen million, two hundred thirty-three thousand, four hundred forty-four".