2321131120 has 80 divisors (see below), whose sum is σ = 6728283648. Its totient is φ = 723467520.

The previous prime is 2321131117. The next prime is 2321131123. The reversal of 2321131120 is 211311232.

It is an interprime number because it is at equal distance from previous prime (2321131117) and next prime (2321131123).

It is a tau number, because it is divible by the number of its divisors (80).

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 = 2321131094 and 2321131103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2321131123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 182244 + ... + 194563.

Almost surely, 2^2321131120 is an apocalyptic number.

2321131120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2321131120 is an abundant number, since it is smaller than the sum of its proper divisors (4407152528).

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

2321131120 is a wasteful number, since it uses less digits than its factorization.

2321131120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376838 (or 376832 counting only the distinct ones).

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

The square root of 2321131120 is about 48178.1186847307. The cubic root of 2321131120 is about 1324.0362984180.

Adding to 2321131120 its reverse (211311232), we get a palindrome (2532442352).

The spelling of 2321131120 in words is "two billion, three hundred twenty-one million, one hundred thirty-one thousand, one hundred twenty".