123031112203 has 4 divisors (see below), whose sum is σ = 123032619040. Its totient is φ = 123029605368.

The previous prime is 123031112189. The next prime is 123031112213. The reversal of 123031112203 is 302211130321.

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

It is a cyclic number.

It is not a de Polignac number, because 123031112203 - 2¹⁷ = 123030981131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123031112213) 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, 623475 + ... + 796732.

It is an arithmetic number, because the mean of its divisors is an integer number (30758154760).

Almost surely, 2^123031112203 is an apocalyptic number.

123031112203 is a deficient number, since it is larger than the sum of its proper divisors (1506837).

123031112203 is an equidigital number, since it uses as much as digits as its factorization.

123031112203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1506836.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 123031112203 its reverse (302211130321), we get a palindrome (425242242524).

The spelling of 123031112203 in words is "one hundred twenty-three billion, thirty-one million, one hundred twelve thousand, two hundred three".