2231031120 has 40 divisors (see below), whose sum is σ = 6916197216. Its totient is φ = 594941568.

The previous prime is 2231031097. The next prime is 2231031139. The reversal of 2231031120 is 211301322.

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

It is a super-3 number, since 3×2231031120³ (a number of 29 digits) contains 333 as substring.

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

It is a self number, because there is not a number n which added to its sum of digits gives 2231031120.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4647742 + ... + 4648221.

Almost surely, 2^2231031120 is an apocalyptic number.

2231031120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2231031120 is an abundant number, since it is smaller than the sum of its proper divisors (4685166096).

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

2231031120 is a wasteful number, since it uses less digits than its factorization.

2231031120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9295979 (or 9295973 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 2231031120 is about 47233.7921407968. The cubic root of 2231031120 is about 1306.6778904816.

Adding to 2231031120 its reverse (211301322), we get a palindrome (2442332442).

The spelling of 2231031120 in words is "two billion, two hundred thirty-one million, thirty-one thousand, one hundred twenty".