123100123193 has 4 divisors (see below), whose sum is σ = 123435546240. Its totient is φ = 122764700148.

The previous prime is 123100123171. The next prime is 123100123199. The reversal of 123100123193 is 391321001321.

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, and also an emirpimes, since its reverse is a distinct semiprime: 391321001321 = 3511 ⋅111455711.

It is a cyclic number.

It is not a de Polignac number, because 123100123193 - 2⁶ = 123100123129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123100123199) 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, 167710973 + ... + 167711706.

It is an arithmetic number, because the mean of its divisors is an integer number (30858886560).

Almost surely, 2^123100123193 is an apocalyptic number.

It is an amenable number.

123100123193 is a deficient number, since it is larger than the sum of its proper divisors (335423047).

123100123193 is an equidigital number, since it uses as much as digits as its factorization.

123100123193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335423046.

The product of its (nonzero) digits is 972, while the sum is 26.

The spelling of 123100123193 in words is "one hundred twenty-three billion, one hundred million, one hundred twenty-three thousand, one hundred ninety-three".