123011233010203 has 4 divisors (see below), whose sum is σ = 123035781255688. Its totient is φ = 122986684764720.

The previous prime is 123011233010177. The next prime is 123011233010209. The reversal of 123011233010203 is 302010332110321.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123011233010203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123011233010209) 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, 12274115226 + ... + 12274125247.

It is an arithmetic number, because the mean of its divisors is an integer number (30758945313922).

Almost surely, 2^{123011233010203} is an apocalyptic number.

123011233010203 is a deficient number, since it is larger than the sum of its proper divisors (24548245485).

123011233010203 is an equidigital number, since it uses as much as digits as its factorization.

123011233010203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24548245484.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 123011233010203 its reverse (302010332110321), we get a palindrome (425021565120524).

The spelling of 123011233010203 in words is "one hundred twenty-three trillion, eleven billion, two hundred thirty-three million, ten thousand, two hundred three".