431432001220 has 24 divisors (see below), whose sum is σ = 988371494208. Its totient is φ = 156884364000.

The previous prime is 431432001089. The next prime is 431432001241. The reversal of 431432001220 is 22100234134.

It is a super-2 number, since 2×431432001220² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 431432001191 and 431432001200.

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, 980527056 + ... + 980527495.

It is an arithmetic number, because the mean of its divisors is an integer number (41182145592).

Almost surely, 2^431432001220 is an apocalyptic number.

It is an amenable number.

431432001220 is an abundant number, since it is smaller than the sum of its proper divisors (556939492988).

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

431432001220 is a wasteful number, since it uses less digits than its factorization.

431432001220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1961054571 (or 1961054569 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 431432001220 its reverse (22100234134), we get a palindrome (453532235354).

The spelling of 431432001220 in words is "four hundred thirty-one billion, four hundred thirty-two million, one thousand, two hundred twenty".