2123400333 has 16 divisors (see below), whose sum is σ = 2860608960. Its totient is φ = 1400927616.

The previous prime is 2123400313. The next prime is 2123400361. The reversal of 2123400333 is 3330043212.

It is not a de Polignac number, because 2123400333 - 2⁹ = 2123399821 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2123400313) 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, 306241 + ... + 313097.

It is an arithmetic number, because the mean of its divisors is an integer number (178788060).

Almost surely, 2^2123400333 is an apocalyptic number.

It is an amenable number.

2123400333 is a deficient number, since it is larger than the sum of its proper divisors (737208627).

2123400333 is a wasteful number, since it uses less digits than its factorization.

2123400333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7916.

The product of its (nonzero) digits is 1296, while the sum is 21.

The square root of 2123400333 is about 46080.3681951436. The cubic root of 2123400333 is about 1285.3181108698.

Adding to 2123400333 its reverse (3330043212), we get a palindrome (5453443545).

The spelling of 2123400333 in words is "two billion, one hundred twenty-three million, four hundred thousand, three hundred thirty-three".