2130123231 has 32 divisors (see below), whose sum is σ = 3325920000. Its totient is φ = 1343685024.

The previous prime is 2130123217. The next prime is 2130123251. The reversal of 2130123231 is 1323210312.

It is not a de Polignac number, because 2130123231 - 2⁵ = 2130123199 is a prime.

It is a super-2 number, since 2×2130123231² = 9074849958491758722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2130123251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 517620 + ... + 521718.

It is an arithmetic number, because the mean of its divisors is an integer number (103935000).

Almost surely, 2^2130123231 is an apocalyptic number.

2130123231 is a deficient number, since it is larger than the sum of its proper divisors (1195796769).

2130123231 is a wasteful number, since it uses less digits than its factorization.

2130123231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5140 (or 5134 counting only the distinct ones).

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

The square root of 2130123231 is about 46153.2580756765. The cubic root of 2130123231 is about 1286.6731637285.

Adding to 2130123231 its reverse (1323210312), we get a palindrome (3453333543).

The spelling of 2130123231 in words is "two billion, one hundred thirty million, one hundred twenty-three thousand, two hundred thirty-one".