21320201420013 has 16 divisors (see below), whose sum is σ = 30222566087040. Its totient is φ = 13338972064704.

The previous prime is 21320201419987. The next prime is 21320201420039. The reversal of 21320201420013 is 31002410202312.

It is an interprime number because it is at equal distance from previous prime (21320201419987) and next prime (21320201420039).

It is not a de Polignac number, because 21320201420013 - 2¹⁶ = 21320201354477 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21320201420513) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2914981498 + ... + 2914988811.

It is an arithmetic number, because the mean of its divisors is an integer number (1888910380440).

Almost surely, 2^{21320201420013} is an apocalyptic number.

21320201420013 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

21320201420013 is a deficient number, since it is larger than the sum of its proper divisors (8902364667027).

21320201420013 is a wasteful number, since it uses less digits than its factorization.

21320201420013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5829970388.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 21320201420013 its reverse (31002410202312), we get a palindrome (52322611622325).

The spelling of 21320201420013 in words is "twenty-one trillion, three hundred twenty billion, two hundred one million, four hundred twenty thousand, thirteen".