21323301121013 has 8 divisors (see below), whose sum is σ = 21990131501760. Its totient is φ = 20666651356960.

The previous prime is 21323301121009. The next prime is 21323301121021. The reversal of 21323301121013 is 31012110332312.

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 21323301121013 - 2² = 21323301121009 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 21323301121013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21323301121093) 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, 2545149920 + ... + 2545158297.

It is an arithmetic number, because the mean of its divisors is an integer number (2748766437720).

Almost surely, 2^{21323301121013} is an apocalyptic number.

It is an amenable number.

21323301121013 is a deficient number, since it is larger than the sum of its proper divisors (666830380747).

21323301121013 is an equidigital number, since it uses as much as digits as its factorization.

21323301121013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5090308347.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 21323301121013 its reverse (31012110332312), we get a palindrome (52335411453325).

The spelling of 21323301121013 in words is "twenty-one trillion, three hundred twenty-three billion, three hundred one million, one hundred twenty-one thousand, thirteen".