2123403434 has 16 divisors (see below), whose sum is σ = 3277749888. Its totient is φ = 1030935312.

The previous prime is 2123403421. The next prime is 2123403437. The reversal of 2123403434 is 4343043212.

It is not an unprimeable number, because it can be changed into a prime (2123403437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8699 + ... + 65745.

It is an arithmetic number, because the mean of its divisors is an integer number (204859368).

Almost surely, 2^2123403434 is an apocalyptic number.

2123403434 is a deficient number, since it is larger than the sum of its proper divisors (1154346454).

2123403434 is a wasteful number, since it uses less digits than its factorization.

2123403434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57589.

The product of its (nonzero) digits is 6912, while the sum is 26.

The square root of 2123403434 is about 46080.4018428659. The cubic root of 2123403434 is about 1285.3187365595.

Adding to 2123403434 its reverse (4343043212), we get a palindrome (6466446646).

The spelling of 2123403434 in words is "two billion, one hundred twenty-three million, four hundred three thousand, four hundred thirty-four".