12021011023 has 8 divisors (see below), whose sum is σ = 13739227040. Its totient is φ = 10303027200.

The previous prime is 12021011021. The next prime is 12021011027. The reversal of 12021011023 is 32011012021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12021011023 - 2¹ = 12021011021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12021010994 and 12021011012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12021011021) 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, 72463 + ... + 171151.

It is an arithmetic number, because the mean of its divisors is an integer number (1717403380).

Almost surely, 2^12021011023 is an apocalyptic number.

12021011023 is a deficient number, since it is larger than the sum of its proper divisors (1718216017).

12021011023 is an equidigital number, since it uses as much as digits as its factorization.

12021011023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116097.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 12021011023 its reverse (32011012021), we get a palindrome (44032023044).

The spelling of 12021011023 in words is "twelve billion, twenty-one million, eleven thousand, twenty-three".