12421451023 has 8 divisors (see below), whose sum is σ = 12587590400. Its totient is φ = 12256408728.

The previous prime is 12421451017. The next prime is 12421451033. The reversal of 12421451023 is 32015412421.

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 12421451023 - 2²¹ = 12419353871 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 (12421451033) 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, 251463 + ... + 296776.

It is an arithmetic number, because the mean of its divisors is an integer number (1573448800).

Almost surely, 2^12421451023 is an apocalyptic number.

12421451023 is a deficient number, since it is larger than the sum of its proper divisors (166139377).

12421451023 is a wasteful number, since it uses less digits than its factorization.

12421451023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 548541.

The product of its (nonzero) digits is 1920, while the sum is 25.

Adding to 12421451023 its reverse (32015412421), we get a palindrome (44436863444).

The spelling of 12421451023 in words is "twelve billion, four hundred twenty-one million, four hundred fifty-one thousand, twenty-three".