13024121421 has 16 divisors (see below), whose sum is σ = 17560859904. Its totient is φ = 8585232384.

The previous prime is 13024121401. The next prime is 13024121423. The reversal of 13024121421 is 12412142031.

It is not a de Polignac number, because 13024121421 - 2⁷ = 13024121293 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13024121423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 300685 + ... + 341261.

It is an arithmetic number, because the mean of its divisors is an integer number (1097553744).

Almost surely, 2^13024121421 is an apocalyptic number.

It is an amenable number.

13024121421 is a deficient number, since it is larger than the sum of its proper divisors (4536738483).

13024121421 is a wasteful number, since it uses less digits than its factorization.

13024121421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41780.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 13024121421 its reverse (12412142031), we get a palindrome (25436263452).

The spelling of 13024121421 in words is "thirteen billion, twenty-four million, one hundred twenty-one thousand, four hundred twenty-one".