123001003102020 has 24 divisors (see below), whose sum is σ = 344402808685824. Its totient is φ = 32800267493856.

The previous prime is 123001003102013. The next prime is 123001003102027. The reversal of 123001003102020 is 20201300100321.

It is an interprime number because it is at equal distance from previous prime (123001003102013) and next prime (123001003102027).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (123001003102027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1025008359124 + ... + 1025008359243.

It is an arithmetic number, because the mean of its divisors is an integer number (14350117028576).

Almost surely, 2^{123001003102020} is an apocalyptic number.

123001003102020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123001003102020 is an abundant number, since it is smaller than the sum of its proper divisors (221401805583804).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123001003102020 is a wasteful number, since it uses less digits than its factorization.

123001003102020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2050016718379 (or 2050016718377 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 123001003102020 its reverse (20201300100321), we get a palindrome (143202303202341).

The spelling of 123001003102020 in words is "one hundred twenty-three trillion, one billion, three million, one hundred two thousand, twenty".