2311020223 has 2 divisors, whose sum is σ = 2311020224. Its totient is φ = 2311020222.

The previous prime is 2311020193. The next prime is 2311020269. The reversal of 2311020223 is 3220201132.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2311020223 - 2²⁵ = 2277465791 is a prime.

It is a super-2 number, since 2×2311020223² = 10681628942229939458, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2311020197 and 2311020206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2311020323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1155510111 + 1155510112.

It is an arithmetic number, because the mean of its divisors is an integer number (1155510112).

Almost surely, 2^2311020223 is an apocalyptic number.

2311020223 is a deficient number, since it is larger than the sum of its proper divisors (1).

2311020223 is an equidigital number, since it uses as much as digits as its factorization.

2311020223 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 2311020223 is about 48073.0717033975. The cubic root of 2311020223 is about 1322.1109899620.

Adding to 2311020223 its reverse (3220201132), we get a palindrome (5531221355).

The spelling of 2311020223 in words is "two billion, three hundred eleven million, twenty thousand, two hundred twenty-three".