2311023313 has 4 divisors (see below), whose sum is σ = 2327649520. Its totient is φ = 2294397108.

The previous prime is 2311023307. The next prime is 2311023317. The reversal of 2311023313 is 3133201132.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2311023313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2311023317) 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, 8312895 + ... + 8313172.

It is an arithmetic number, because the mean of its divisors is an integer number (581912380).

Almost surely, 2^2311023313 is an apocalyptic number.

It is an amenable number.

2311023313 is a deficient number, since it is larger than the sum of its proper divisors (16626207).

2311023313 is a wasteful number, since it uses less digits than its factorization.

2311023313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16626206.

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 2311023313 is about 48073.1038419614. The cubic root of 2311023313 is about 1322.1115792142. Note that the first 3 decimals are identical.

Adding to 2311023313 its reverse (3133201132), we get a palindrome (5444224445).

The spelling of 2311023313 in words is "two billion, three hundred eleven million, twenty-three thousand, three hundred thirteen".