23123121203 has 32 divisors (see below), whose sum is σ = 29636060160. Its totient is φ = 17547062400.

The previous prime is 23123121181. The next prime is 23123121227. The reversal of 23123121203 is 30212132132.

It is not a de Polignac number, because 23123121203 - 2⁸ = 23123120947 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23123121233) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 369476 + ... + 427502.

It is an arithmetic number, because the mean of its divisors is an integer number (926126880).

Almost surely, 2^23123121203 is an apocalyptic number.

23123121203 is a deficient number, since it is larger than the sum of its proper divisors (6512938957).

23123121203 is a wasteful number, since it uses less digits than its factorization.

23123121203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58227.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 23123121203 its reverse (30212132132), we get a palindrome (53335253335).

The spelling of 23123121203 in words is "twenty-three billion, one hundred twenty-three million, one hundred twenty-one thousand, two hundred three".