2123210133 has 48 divisors (see below), whose sum is σ = 3436759872. Its totient is φ = 1251936000.

The previous prime is 2123210129. The next prime is 2123210137. The reversal of 2123210133 is 3310123212.

2123210133 is a `hidden beast` number, since 212 + 321 + 0 + 133 = 666.

It is an interprime number because it is at equal distance from previous prime (2123210129) and next prime (2123210137).

It is not a de Polignac number, because 2123210133 - 2² = 2123210129 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2123210137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2804391 + ... + 2805147.

It is an arithmetic number, because the mean of its divisors is an integer number (71599164).

Almost surely, 2^2123210133 is an apocalyptic number.

It is an amenable number.

2123210133 is a deficient number, since it is larger than the sum of its proper divisors (1313549739).

2123210133 is a wasteful number, since it uses less digits than its factorization.

2123210133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1506 (or 1503 counting only the distinct ones).

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

The square root of 2123210133 is about 46078.3043633335. The cubic root of 2123210133 is about 1285.2797329906.

Adding to 2123210133 its reverse (3310123212), we get a palindrome (5433333345).

The spelling of 2123210133 in words is "two billion, one hundred twenty-three million, two hundred ten thousand, one hundred thirty-three".