123203115039 has 4 divisors (see below), whose sum is σ = 164270820056. Its totient is φ = 82135410024.

The previous prime is 123203115029. The next prime is 123203115047. The reversal of 123203115039 is 930511302321.

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

It is not a de Polignac number, because 123203115039 - 2¹⁵ = 123203082271 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123203114997 and 123203115015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123203115029) 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, 20533852504 + ... + 20533852509.

It is an arithmetic number, because the mean of its divisors is an integer number (41067705014).

Almost surely, 2^123203115039 is an apocalyptic number.

123203115039 is a deficient number, since it is larger than the sum of its proper divisors (41067705017).

123203115039 is an equidigital number, since it uses as much as digits as its factorization.

123203115039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41067705016.

The product of its (nonzero) digits is 4860, while the sum is 30.

The spelling of 123203115039 in words is "one hundred twenty-three billion, two hundred three million, one hundred fifteen thousand, thirty-nine".