2123031212 has 6 divisors (see below), whose sum is σ = 3715304628. Its totient is φ = 1061515604.

The previous prime is 2123031193. The next prime is 2123031223. The reversal of 2123031212 is 2121303212.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 265378898 + ... + 265378905.

It is an arithmetic number, because the mean of its divisors is an integer number (619217438).

Almost surely, 2^2123031212 is an apocalyptic number.

It is an amenable number.

2123031212 is a deficient number, since it is larger than the sum of its proper divisors (1592273416).

2123031212 is a wasteful number, since it uses less digits than its factorization.

2123031212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 530757807 (or 530757805 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 2123031212 is about 46076.3628338870. The cubic root of 2123031212 is about 1285.2436288557.

Adding to 2123031212 its reverse (2121303212), we get a palindrome (4244334424).

Subtracting from 2123031212 its reverse (2121303212), we obtain a cube (1728000 = 120³).

The spelling of 2123031212 in words is "two billion, one hundred twenty-three million, thirty-one thousand, two hundred twelve".