2311663145 has 32 divisors (see below), whose sum is σ = 3252099456. Its totient is φ = 1558656000.

The previous prime is 2311663141. The next prime is 2311663147. The reversal of 2311663145 is 5413661132.

It is not a de Polignac number, because 2311663145 - 2² = 2311663141 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2311663141) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 44195 + ... + 81095.

It is an arithmetic number, because the mean of its divisors is an integer number (101628108).

Almost surely, 2^2311663145 is an apocalyptic number.

It is an amenable number.

2311663145 is a deficient number, since it is larger than the sum of its proper divisors (940436311).

2311663145 is a wasteful number, since it uses less digits than its factorization.

2311663145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37001.

The product of its digits is 12960, while the sum is 32.

The square root of 2311663145 is about 48079.7581628693. The cubic root of 2311663145 is about 1322.2335816240.

The spelling of 2311663145 in words is "two billion, three hundred eleven million, six hundred sixty-three thousand, one hundred forty-five".