20030120232123 has 16 divisors (see below), whose sum is σ = 27957601092096. Its totient is φ = 12731760085440.

The previous prime is 20030120232053. The next prime is 20030120232131. The reversal of 20030120232123 is 32123202103002.

It is a happy number.

It is not a de Polignac number, because 20030120232123 - 2⁸ = 20030120231867 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20030120232123.

It is not an unprimeable number, because it can be changed into a prime (20030120239123) 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, 466685290 + ... + 466728207.

It is an arithmetic number, because the mean of its divisors is an integer number (1747350068256).

Almost surely, 2^{20030120232123} is an apocalyptic number.

20030120232123 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

20030120232123 is a deficient number, since it is larger than the sum of its proper divisors (7927480859973).

20030120232123 is a wasteful number, since it uses less digits than its factorization.

20030120232123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 933413834.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 20030120232123 its reverse (32123202103002), we get a palindrome (52153322335125).

The spelling of 20030120232123 in words is "twenty trillion, thirty billion, one hundred twenty million, two hundred thirty-two thousand, one hundred twenty-three".