220310111303231 has 2 divisors, whose sum is σ = 220310111303232. Its totient is φ = 220310111303230.

The previous prime is 220310111303153. The next prime is 220310111303257. The reversal of 220310111303231 is 132303111013022.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-220310111303231 is a prime.

It is a super-2 number, since 2×220310111303231² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 220310111303197 and 220310111303206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220310111300231) 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 as a sum of consecutive naturals, namely, 110155055651615 + 110155055651616.

It is an arithmetic number, because the mean of its divisors is an integer number (110155055651616).

Almost surely, 2^{220310111303231} is an apocalyptic number.

220310111303231 is a deficient number, since it is larger than the sum of its proper divisors (1).

220310111303231 is an equidigital number, since it uses as much as digits as its factorization.

220310111303231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 220310111303231 its reverse (132303111013022), we get a palindrome (352613222316253).

The spelling of 220310111303231 in words is "two hundred twenty trillion, three hundred ten billion, one hundred eleven million, three hundred three thousand, two hundred thirty-one".