100120100023 has 4 divisors (see below), whose sum is σ = 102009158568. Its totient is φ = 98231041480.

The previous prime is 100120100011. The next prime is 100120100029. The reversal of 100120100023 is 320001021001.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100120100023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100120099982 and 100120100009.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100120100029) 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, 944529193 + ... + 944529298.

It is an arithmetic number, because the mean of its divisors is an integer number (25502289642).

Almost surely, 2^100120100023 is an apocalyptic number.

100120100023 is a deficient number, since it is larger than the sum of its proper divisors (1889058545).

100120100023 is an equidigital number, since it uses as much as digits as its factorization.

100120100023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1889058544.

The product of its (nonzero) digits is 12, while the sum is 10.

Adding to 100120100023 its reverse (320001021001), we get a palindrome (420121121024).

The spelling of 100120100023 in words is "one hundred billion, one hundred twenty million, one hundred thousand, twenty-three".