2311012251 has 12 divisors (see below), whose sum is σ = 3341688480. Its totient is φ = 1539031920.

The previous prime is 2311012247. The next prime is 2311012261. The reversal of 2311012251 is 1522101132.

It is not a de Polignac number, because 2311012251 - 2² = 2311012247 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2311012261) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 127971 + ... + 144908.

It is an arithmetic number, because the mean of its divisors is an integer number (278474040).

Almost surely, 2^2311012251 is an apocalyptic number.

2311012251 is a deficient number, since it is larger than the sum of its proper divisors (1030676229).

2311012251 is a wasteful number, since it uses less digits than its factorization.

2311012251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273826 (or 273823 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 2311012251 is about 48072.9887878838. The cubic root of 2311012251 is about 1322.1094697271.

Adding to 2311012251 its reverse (1522101132), we get a palindrome (3833113383).

The spelling of 2311012251 in words is "two billion, three hundred eleven million, twelve thousand, two hundred fifty-one".