21302112123013 has 8 divisors (see below), whose sum is σ = 21433055717376. Its totient is φ = 21171370760400.

The previous prime is 21302112123001. The next prime is 21302112123023. The reversal of 21302112123013 is 31032121120312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21302112123013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21302112123023) 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, 50346618 + ... + 50767963.

It is an arithmetic number, because the mean of its divisors is an integer number (2679131964672).

Almost surely, 2^{21302112123013} is an apocalyptic number.

It is an amenable number.

21302112123013 is a deficient number, since it is larger than the sum of its proper divisors (130943594363).

21302112123013 is a wasteful number, since it uses less digits than its factorization.

21302112123013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101115875.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 21302112123013 its reverse (31032121120312), we get a palindrome (52334233243325).

The spelling of 21302112123013 in words is "twenty-one trillion, three hundred two billion, one hundred twelve million, one hundred twenty-three thousand, thirteen".