12120001023 has 16 divisors (see below), whose sum is σ = 17405055360. Its totient is φ = 7457614944.

The previous prime is 12120000983. The next prime is 12120001051. The reversal of 12120001023 is 32010002121.

It is not a de Polignac number, because 12120001023 - 2¹⁰ = 12119999999 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12120000023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 644488 + ... + 663026.

It is an arithmetic number, because the mean of its divisors is an integer number (1087815960).

Almost surely, 2^12120001023 is an apocalyptic number.

12120001023 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

12120001023 is a deficient number, since it is larger than the sum of its proper divisors (5285054337).

12120001023 is a wasteful number, since it uses less digits than its factorization.

12120001023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35318.

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 12120001023 its reverse (32010002121), we get a palindrome (44130003144).

The spelling of 12120001023 in words is "twelve billion, one hundred twenty million, one thousand, twenty-three".