2124312531 has 16 divisors (see below), whose sum is σ = 3161769600. Its totient is φ = 1257520320.

The previous prime is 2124312467. The next prime is 2124312551. The reversal of 2124312531 is 1352134212.

It is not a de Polignac number, because 2124312531 - 2⁶ = 2124312467 is a prime.

It is a super-2 number, since 2×2124312531² = 9025407458727251922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2124312551) 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, 747106 + ... + 749943.

It is an arithmetic number, because the mean of its divisors is an integer number (197610600).

Almost surely, 2^2124312531 is an apocalyptic number.

2124312531 is a deficient number, since it is larger than the sum of its proper divisors (1037457069).

2124312531 is a wasteful number, since it uses less digits than its factorization.

2124312531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1497106.

The product of its digits is 1440, while the sum is 24.

The square root of 2124312531 is about 46090.2650350375. The cubic root of 2124312531 is about 1285.5021390906.

Adding to 2124312531 its reverse (1352134212), we get a palindrome (3476446743).

The spelling of 2124312531 in words is "two billion, one hundred twenty-four million, three hundred twelve thousand, five hundred thirty-one".