2311001023 has 2 divisors, whose sum is σ = 2311001024. Its totient is φ = 2311001022.

The previous prime is 2311001003. The next prime is 2311001059. The reversal of 2311001023 is 3201001132.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2311001023 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2311000994 and 2311001012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2311001003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1155500511 + 1155500512.

It is an arithmetic number, because the mean of its divisors is an integer number (1155500512).

Almost surely, 2^2311001023 is an apocalyptic number.

2311001023 is a deficient number, since it is larger than the sum of its proper divisors (1).

2311001023 is an equidigital number, since it uses as much as digits as its factorization.

2311001023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 2311001023 is about 48072.8720069854. The cubic root of 2311001023 is about 1322.1073285775.

Adding to 2311001023 its reverse (3201001132), we get a palindrome (5512002155).

The spelling of 2311001023 in words is "two billion, three hundred eleven million, one thousand, twenty-three".