220311023291 has 2 divisors, whose sum is σ = 220311023292. Its totient is φ = 220311023290.

The previous prime is 220311023221. The next prime is 220311023369. The reversal of 220311023291 is 192320113022.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-220311023291 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 220311023291.

It is not a weakly prime, because it can be changed into another prime (220311023221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110155511645 + 110155511646.

It is an arithmetic number, because the mean of its divisors is an integer number (110155511646).

Almost surely, 2^220311023291 is an apocalyptic number.

220311023291 is a deficient number, since it is larger than the sum of its proper divisors (1).

220311023291 is an equidigital number, since it uses as much as digits as its factorization.

220311023291 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 26.

The spelling of 220311023291 in words is "two hundred twenty billion, three hundred eleven million, twenty-three thousand, two hundred ninety-one".