101123123099 has 4 divisors (see below), whose sum is σ = 104385159360. Its totient is φ = 97861086840.

The previous prime is 101123123093. The next prime is 101123123131. The reversal of 101123123099 is 990321321101.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 101123123099 - 2⁴ = 101123123083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101123123093) 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, 1631018084 + ... + 1631018145.

It is an arithmetic number, because the mean of its divisors is an integer number (26096289840).

Almost surely, 2^101123123099 is an apocalyptic number.

101123123099 is a deficient number, since it is larger than the sum of its proper divisors (3262036261).

101123123099 is an equidigital number, since it uses as much as digits as its factorization.

101123123099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3262036260.

The product of its (nonzero) digits is 2916, while the sum is 32.

The spelling of 101123123099 in words is "one hundred one billion, one hundred twenty-three million, one hundred twenty-three thousand, ninety-nine".