220633328431 has 2 divisors, whose sum is σ = 220633328432. Its totient is φ = 220633328430.

The previous prime is 220633328423. The next prime is 220633328449. The reversal of 220633328431 is 134823336022.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 220633328431 - 2³ = 220633328423 is a prime.

It is a super-2 number, since 2×220633328431² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220633328491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110316664215 + 110316664216.

It is an arithmetic number, because the mean of its divisors is an integer number (110316664216).

Almost surely, 2^220633328431 is an apocalyptic number.

220633328431 is a deficient number, since it is larger than the sum of its proper divisors (1).

220633328431 is an equidigital number, since it uses as much as digits as its factorization.

220633328431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 124416, while the sum is 37.

The spelling of 220633328431 in words is "two hundred twenty billion, six hundred thirty-three million, three hundred twenty-eight thousand, four hundred thirty-one".