2131231230 has 64 divisors (see below), whose sum is σ = 5790553920. Its totient is φ = 557601408.

The previous prime is 2131231229. The next prime is 2131231241. The reversal of 2131231230 is 321321312.

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

It is a congruent 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, 60157 + ... + 88776.

It is an arithmetic number, because the mean of its divisors is an integer number (90477405).

Almost surely, 2^2131231230 is an apocalyptic number.

2131231230 is an abundant number, since it is smaller than the sum of its proper divisors (3659322690).

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

2131231230 is a wasteful number, since it uses less digits than its factorization.

2131231230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149002 (or 148996 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 2131231230 is about 46165.2599906033. The cubic root of 2131231230 is about 1286.8962158419.

Adding to 2131231230 its reverse (321321312), we get a palindrome (2452552542).

The spelling of 2131231230 in words is "two billion, one hundred thirty-one million, two hundred thirty-one thousand, two hundred thirty".