110023121999 has 4 divisors (see below), whose sum is σ = 125740710864. Its totient is φ = 94305533136.

The previous prime is 110023121927. The next prime is 110023122007. The reversal of 110023121999 is 999121320011.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 999121320011 = 571 ⋅1749774641.

It is a cyclic number.

It is not a de Polignac number, because 110023121999 - 2¹² = 110023117903 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110023121699) 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, 7858794422 + ... + 7858794435.

It is an arithmetic number, because the mean of its divisors is an integer number (31435177716).

Almost surely, 2^110023121999 is an apocalyptic number.

110023121999 is a deficient number, since it is larger than the sum of its proper divisors (15717588865).

110023121999 is an equidigital number, since it uses as much as digits as its factorization.

110023121999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15717588864.

The product of its (nonzero) digits is 8748, while the sum is 38.

The spelling of 110023121999 in words is "one hundred ten billion, twenty-three million, one hundred twenty-one thousand, nine hundred ninety-nine".