2311133130 has 48 divisors (see below), whose sum is σ = 6011749224. Its totient is φ = 616014720.

The previous prime is 2311133117. The next prime is 2311133131. The reversal of 2311133130 is 313311132.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2153052801 + 158080329 = 46401^2 + 12573^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2311133131) 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, 247140 + ... + 256320.

Almost surely, 2^2311133130 is an apocalyptic number.

2311133130 is an abundant number, since it is smaller than the sum of its proper divisors (3700616094).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2311133130 is a wasteful number, since it uses less digits than its factorization.

2311133130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11991 (or 11988 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

The square root of 2311133130 is about 48074.2460159283. The cubic root of 2311133130 is about 1322.1325205907.

Adding to 2311133130 its reverse (313311132), we get a palindrome (2624444262).

The spelling of 2311133130 in words is "two billion, three hundred eleven million, one hundred thirty-three thousand, one hundred thirty".