2311312949 has 4 divisors (see below), whose sum is σ = 2521432320. Its totient is φ = 2101193580.

The previous prime is 2311312943. The next prime is 2311312951. The reversal of 2311312949 is 9492131132.

2311312949 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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-2311312949 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2311312943) 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, 105059669 + ... + 105059690.

It is an arithmetic number, because the mean of its divisors is an integer number (630358080).

Almost surely, 2^2311312949 is an apocalyptic number.

It is an amenable number.

2311312949 is a deficient number, since it is larger than the sum of its proper divisors (210119371).

2311312949 is a wasteful number, since it uses less digits than its factorization.

2311312949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210119370.

The product of its digits is 11664, while the sum is 35.

The square root of 2311312949 is about 48076.1162012906. The cubic root of 2311312949 is about 1322.1668094537.

The spelling of 2311312949 in words is "two billion, three hundred eleven million, three hundred twelve thousand, nine hundred forty-nine".