1000120001023 has 16 divisors (see below), whose sum is σ = 1215482234400. Its totient is φ = 810321482880.

The previous prime is 1000120001017. The next prime is 1000120001057. The reversal of 1000120001023 is 3201000210001.

It is not a de Polignac number, because 1000120001023 - 2¹³ = 1000119992831 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 (1000120001003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 120579408 + ... + 120587701.

It is an arithmetic number, because the mean of its divisors is an integer number (75967639650).

Almost surely, 2^{1000120001023} is an apocalyptic number.

1000120001023 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1000120001023 is a deficient number, since it is larger than the sum of its proper divisors (215362233377).

1000120001023 is a wasteful number, since it uses less digits than its factorization.

1000120001023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241167162.

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

Adding to 1000120001023 its reverse (3201000210001), we get a palindrome (4201120211024).

The spelling of 1000120001023 in words is "one trillion, one hundred twenty million, one thousand, twenty-three".