2123321204 has 12 divisors (see below), whose sum is σ = 3716153700. Its totient is φ = 1061563008.

The previous prime is 2123321203. The next prime is 2123321237. The reversal of 2123321204 is 4021233212.

It can be written as a sum of positive squares in 2 ways, for example, as 1095477604 + 1027843600 = 33098^2 + 32060^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2123321201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49262 + ... + 81690.

It is an arithmetic number, because the mean of its divisors is an integer number (309679475).

Almost surely, 2^2123321204 is an apocalyptic number.

It is an amenable number.

2123321204 is a deficient number, since it is larger than the sum of its proper divisors (1592832496).

2123321204 is a wasteful number, since it uses less digits than its factorization.

2123321204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48802 (or 48800 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 2123321204 is about 46079.5095894043. The cubic root of 2123321204 is about 1285.3021447801.

Adding to 2123321204 its reverse (4021233212), we get a palindrome (6144554416).

The spelling of 2123321204 in words is "two billion, one hundred twenty-three million, three hundred twenty-one thousand, two hundred four".