100603315123 has 4 divisors (see below), whose sum is σ = 101327080120. Its totient is φ = 99879550128.

The previous prime is 100603315091. The next prime is 100603315133. The reversal of 100603315123 is 321513306001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 321513306001 = 12757 ⋅25202893.

It is a cyclic number.

It is not a de Polignac number, because 100603315123 - 2⁵ = 100603315091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100603315133) 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, 361882290 + ... + 361882567.

It is an arithmetic number, because the mean of its divisors is an integer number (25331770030).

Almost surely, 2^100603315123 is an apocalyptic number.

100603315123 is a deficient number, since it is larger than the sum of its proper divisors (723764997).

100603315123 is an equidigital number, since it uses as much as digits as its factorization.

100603315123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 723764996.

The product of its (nonzero) digits is 1620, while the sum is 25.

The spelling of 100603315123 in words is "one hundred billion, six hundred three million, three hundred fifteen thousand, one hundred twenty-three".