2311231120 has 40 divisors (see below), whose sum is σ = 5862124800. Its totient is φ = 840447360.

The previous prime is 2311231093. The next prime is 2311231127. The reversal of 2311231120 is 211321132.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 2311231094 and 2311231103.

It is not an unprimeable number, because it can be changed into a prime (2311231127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1312320 + ... + 1314079.

It is an arithmetic number, because the mean of its divisors is an integer number (146553120).

Almost surely, 2^2311231120 is an apocalyptic number.

2311231120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2311231120 is an abundant number, since it is smaller than the sum of its proper divisors (3550893680).

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

2311231120 is a wasteful number, since it uses less digits than its factorization.

2311231120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2626423 (or 2626417 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 2311231120 is about 48075.2651578751. The cubic root of 2311231120 is about 1322.1512060763.

Adding to 2311231120 its reverse (211321132), we get a palindrome (2522552252).

The spelling of 2311231120 in words is "two billion, three hundred eleven million, two hundred thirty-one thousand, one hundred twenty".