12421745403 has 16 divisors (see below), whose sum is σ = 16814434560. Its totient is φ = 8156020896.

The previous prime is 12421745383. The next prime is 12421745411. The reversal of 12421745403 is 30454712421.

It is not a de Polignac number, because 12421745403 - 2³³ = 3831810811 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12421745473) 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, 59125 + ... + 168342.

It is an arithmetic number, because the mean of its divisors is an integer number (1050902160).

Almost surely, 2^12421745403 is an apocalyptic number.

12421745403 is a deficient number, since it is larger than the sum of its proper divisors (4392689157).

12421745403 is a wasteful number, since it uses less digits than its factorization.

12421745403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227746.

The product of its (nonzero) digits is 26880, while the sum is 33.

The spelling of 12421745403 in words is "twelve billion, four hundred twenty-one million, seven hundred forty-five thousand, four hundred three".