431112203021 has 16 divisors (see below), whose sum is σ = 461062240128. Its totient is φ = 402106214400.

The previous prime is 431112203003. The next prime is 431112203033. The reversal of 431112203021 is 120302211134.

It is a cyclic number.

It is not a de Polignac number, because 431112203021 - 2¹⁸ = 431111940877 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 431112202984 and 431112203002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431112203521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1758701 + ... + 1988781.

It is an arithmetic number, because the mean of its divisors is an integer number (28816390008).

Almost surely, 2^431112203021 is an apocalyptic number.

431112203021 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

431112203021 is a deficient number, since it is larger than the sum of its proper divisors (29950037107).

431112203021 is a wasteful number, since it uses less digits than its factorization.

431112203021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232132.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 431112203021 its reverse (120302211134), we get a palindrome (551414414155).

The spelling of 431112203021 in words is "four hundred thirty-one billion, one hundred twelve million, two hundred three thousand, twenty-one".