123000037889 has 4 divisors (see below), whose sum is σ = 123335188224. Its totient is φ = 122664887556.

The previous prime is 123000037799. The next prime is 123000037903. The reversal of 123000037889 is 988730000321.

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: 988730000321 = 7 ⋅141247142903.

It is a cyclic number.

It is not a de Polignac number, because 123000037889 - 2²⁰ = 122998989313 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (123000037189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 167574617 + ... + 167575350.

It is an arithmetic number, because the mean of its divisors is an integer number (30833797056).

Almost surely, 2^123000037889 is an apocalyptic number.

It is an amenable number.

123000037889 is a deficient number, since it is larger than the sum of its proper divisors (335150335).

123000037889 is an equidigital number, since it uses as much as digits as its factorization.

123000037889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335150334.

The product of its (nonzero) digits is 72576, while the sum is 41.

The spelling of 123000037889 in words is "one hundred twenty-three billion, thirty-seven thousand, eight hundred eighty-nine".