123203232413 has 4 divisors (see below), whose sum is σ = 123638579808. Its totient is φ = 122767885020.

The previous prime is 123203232409. The next prime is 123203232491. The reversal of 123203232413 is 314232302321.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 123203232413 - 2² = 123203232409 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 (123203232403) 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, 217673273 + ... + 217673838.

It is an arithmetic number, because the mean of its divisors is an integer number (30909644952).

Almost surely, 2^123203232413 is an apocalyptic number.

It is an amenable number.

123203232413 is a deficient number, since it is larger than the sum of its proper divisors (435347395).

123203232413 is an equidigital number, since it uses as much as digits as its factorization.

123203232413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 435347394.

The product of its (nonzero) digits is 5184, while the sum is 26.

Adding to 123203232413 its reverse (314232302321), we get a palindrome (437435534734).

The spelling of 123203232413 in words is "one hundred twenty-three billion, two hundred three million, two hundred thirty-two thousand, four hundred thirteen".