2321111130 has 64 divisors (see below), whose sum is σ = 6029831808. Its totient is φ = 568431360.

The previous prime is 2321111113. The next prime is 2321111161. The reversal of 2321111130 is 311111232.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 61725 + ... + 91935.

It is an arithmetic number, because the mean of its divisors is an integer number (94216122).

Almost surely, 2^2321111130 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2321111130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3014915904).

2321111130 is an abundant number, since it is smaller than the sum of its proper divisors (3708720678).

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

2321111130 is a wasteful number, since it uses less digits than its factorization.

2321111130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30431.

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 2321111130 is about 48177.9112249587. The cubic root of 2321111130 is about 1324.0324974605.

Adding to 2321111130 its reverse (311111232), we get a palindrome (2632222362).

The spelling of 2321111130 in words is "two billion, three hundred twenty-one million, one hundred eleven thousand, one hundred thirty".