431421220322 has 16 divisors (see below), whose sum is σ = 648002011392. Its totient is φ = 215420619360.

The previous prime is 431421220319. The next prime is 431421220333. The reversal of 431421220322 is 223022124134.

It is a super-2 number, since 2×431421220322² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 431421220291 and 431421220300.

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, 19571447 + ... + 19593477.

It is an arithmetic number, because the mean of its divisors is an integer number (40500125712).

Almost surely, 2^431421220322 is an apocalyptic number.

431421220322 is a deficient number, since it is larger than the sum of its proper divisors (216580791070).

431421220322 is a wasteful number, since it uses less digits than its factorization.

431421220322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34753.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 431421220322 its reverse (223022124134), we get a palindrome (654443344456).

The spelling of 431421220322 in words is "four hundred thirty-one billion, four hundred twenty-one million, two hundred twenty thousand, three hundred twenty-two".