2311040023 has 4 divisors (see below), whose sum is σ = 2411520048. Its totient is φ = 2210560000.

The previous prime is 2311039979. The next prime is 2311040029. The reversal of 2311040023 is 3200401132.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2311040023 - 2²⁵ = 2277485591 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2311039979 and 2311040006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2311040029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50239978 + ... + 50240023.

It is an arithmetic number, because the mean of its divisors is an integer number (602880012).

Almost surely, 2^2311040023 is an apocalyptic number.

2311040023 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

2311040023 is a deficient number, since it is larger than the sum of its proper divisors (100480025).

2311040023 is a wasteful number, since it uses less digits than its factorization.

2311040023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100480024.

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

The square root of 2311040023 is about 48073.2776394537. The cubic root of 2311040023 is about 1322.1147657436.

Adding to 2311040023 its reverse (3200401132), we get a palindrome (5511441155).

The spelling of 2311040023 in words is "two billion, three hundred eleven million, forty thousand, twenty-three".