12412121023 has 4 divisors (see below), whose sum is σ = 12412392520. Its totient is φ = 12411849528.

The previous prime is 12412121021. The next prime is 12412121063. The reversal of 12412121023 is 32012121421.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12412121023 - 2¹ = 12412121021 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 (12412121021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48465 + ... + 164842.

It is an arithmetic number, because the mean of its divisors is an integer number (3103098130).

Almost surely, 2^12412121023 is an apocalyptic number.

12412121023 is a deficient number, since it is larger than the sum of its proper divisors (271497).

12412121023 is an equidigital number, since it uses as much as digits as its factorization.

12412121023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271496.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 12412121023 its reverse (32012121421), we get a palindrome (44424242444).

The spelling of 12412121023 in words is "twelve billion, four hundred twelve million, one hundred twenty-one thousand, twenty-three".