13402121005 has 32 divisors (see below), whose sum is σ = 19869341184. Its totient is φ = 8450770176.

The previous prime is 13402120943. The next prime is 13402121009. The reversal of 13402121005 is 50012120431.

13402121005 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 13402121005 - 2²¹ = 13400023853 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13402121009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 63667 + ... + 175663.

It is an arithmetic number, because the mean of its divisors is an integer number (620916912).

Almost surely, 2^13402121005 is an apocalyptic number.

It is an amenable number.

13402121005 is a deficient number, since it is larger than the sum of its proper divisors (6467220179).

13402121005 is a wasteful number, since it uses less digits than its factorization.

13402121005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112285.

The product of its (nonzero) digits is 240, while the sum is 19.

Adding to 13402121005 its reverse (50012120431), we get a palindrome (63414241436).

The spelling of 13402121005 in words is "thirteen billion, four hundred two million, one hundred twenty-one thousand, five".