2122312311 has 24 divisors (see below), whose sum is σ = 3506979840. Its totient is φ = 1211545296.

The previous prime is 2122312303. The next prime is 2122312349. The reversal of 2122312311 is 1132132212.

2122312311 is a `hidden beast` number, since 21 + 22 + 312 + 311 = 666.

It is not a de Polignac number, because 2122312311 - 2³ = 2122312303 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2122322311) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 49246 + ... + 81668.

It is an arithmetic number, because the mean of its divisors is an integer number (146124160).

Almost surely, 2^2122312311 is an apocalyptic number.

2122312311 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2122312311 is a deficient number, since it is larger than the sum of its proper divisors (1384667529).

2122312311 is a wasteful number, since it uses less digits than its factorization.

2122312311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33475 (or 33472 counting only the distinct ones).

The product of its digits is 144, while the sum is 18.

The square root of 2122312311 is about 46068.5609825182. The cubic root of 2122312311 is about 1285.0985427111.

Adding to 2122312311 its reverse (1132132212), we get a palindrome (3254444523).

The spelling of 2122312311 in words is "two billion, one hundred twenty-two million, three hundred twelve thousand, three hundred eleven".