220431033401023 has 4 divisors (see below), whose sum is σ = 220883663860240. Its totient is φ = 219978402941808.

The previous prime is 220431033401021. The next prime is 220431033401039. The reversal of 220431033401023 is 320104330134022.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 220431033401023 - 2¹ = 220431033401021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 220431033400982 and 220431033401000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220431033401021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 226315228878 + ... + 226315229851.

It is an arithmetic number, because the mean of its divisors is an integer number (55220915965060).

Almost surely, 2^{220431033401023} is an apocalyptic number.

220431033401023 is a deficient number, since it is larger than the sum of its proper divisors (452630459217).

220431033401023 is an equidigital number, since it uses as much as digits as its factorization.

220431033401023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 452630459216.

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 220431033401023 its reverse (320104330134022), we get a palindrome (540535363535045).

The spelling of 220431033401023 in words is "two hundred twenty trillion, four hundred thirty-one billion, thirty-three million, four hundred one thousand, twenty-three".