23212435903 has 4 divisors (see below), whose sum is σ = 23605867080. Its totient is φ = 22819004728.

The previous prime is 23212435879. The next prime is 23212435933. The reversal of 23212435903 is 30953421232.

It is a semiprime because it is the product of two primes.

It is a de Polignac number, because none of the positive numbers 2^k-23212435903 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23212435933) 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, 196715500 + ... + 196715617.

It is an arithmetic number, because the mean of its divisors is an integer number (5901466770).

Almost surely, 2^23212435903 is an apocalyptic number.

23212435903 is a deficient number, since it is larger than the sum of its proper divisors (393431177).

23212435903 is an equidigital number, since it uses as much as digits as its factorization.

23212435903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 393431176.

The product of its (nonzero) digits is 38880, while the sum is 34.

The spelling of 23212435903 in words is "twenty-three billion, two hundred twelve million, four hundred thirty-five thousand, nine hundred three".