13020021404121 has 8 divisors (see below), whose sum is σ = 17360045634240. Its totient is φ = 8680005721712.

The previous prime is 13020021404053. The next prime is 13020021404149. The reversal of 13020021404121 is 12140412002031.

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 13020021404121 - 2¹³ = 13020021395929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13020021404821) 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, 3676795 + ... + 6289583.

It is an arithmetic number, because the mean of its divisors is an integer number (2170005704280).

Almost surely, 2^{13020021404121} is an apocalyptic number.

It is an amenable number.

13020021404121 is a deficient number, since it is larger than the sum of its proper divisors (4340024230119).

13020021404121 is a wasteful number, since it uses less digits than its factorization.

13020021404121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4273855.

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

Adding to 13020021404121 its reverse (12140412002031), we get a palindrome (25160433406152).

The spelling of 13020021404121 in words is "thirteen trillion, twenty billion, twenty-one million, four hundred four thousand, one hundred twenty-one".