2315651211 has 6 divisors (see below), whose sum is σ = 3344829540. Its totient is φ = 1543767468.

The previous prime is 2315651183. The next prime is 2315651213. The reversal of 2315651211 is 1121565132.

2315651211 is a `hidden beast` number, since 2 + 3 + 1 + 5 + 651 + 2 + 1 + 1 = 666.

It is not a de Polignac number, because 2315651211 - 2⁷ = 2315651083 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2315651213) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 128647281 + ... + 128647298.

It is an arithmetic number, because the mean of its divisors is an integer number (557471590).

Almost surely, 2^2315651211 is an apocalyptic number.

2315651211 is a deficient number, since it is larger than the sum of its proper divisors (1029178329).

2315651211 is a wasteful number, since it uses less digits than its factorization.

2315651211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257294585 (or 257294582 counting only the distinct ones).

The product of its digits is 1800, while the sum is 27.

The square root of 2315651211 is about 48121.2137315758. The cubic root of 2315651211 is about 1322.9935143304.

The spelling of 2315651211 in words is "two billion, three hundred fifteen million, six hundred fifty-one thousand, two hundred eleven".