2123231252 has 12 divisors (see below), whose sum is σ = 3934222740. Its totient is φ = 999167616.

The previous prime is 2123231213. The next prime is 2123231267. The reversal of 2123231252 is 2521323212.

It can be written as a sum of positive squares in 2 ways, for example, as 1275489796 + 847741456 = 35714^2 + 29116^2 .

It is a super-2 number, since 2×2123231252² = 9016221898938975008, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15611927 + ... + 15612062.

It is an arithmetic number, because the mean of its divisors is an integer number (327851895).

Almost surely, 2^2123231252 is an apocalyptic number.

It is an amenable number.

2123231252 is a deficient number, since it is larger than the sum of its proper divisors (1810991488).

2123231252 is a wasteful number, since it uses less digits than its factorization.

2123231252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31224010 (or 31224008 counting only the distinct ones).

The product of its digits is 1440, while the sum is 23.

The square root of 2123231252 is about 46078.5335270123. The cubic root of 2123231252 is about 1285.2839944204.

Adding to 2123231252 its reverse (2521323212), we get a palindrome (4644554464).

The spelling of 2123231252 in words is "two billion, one hundred twenty-three million, two hundred thirty-one thousand, two hundred fifty-two".