21013413323 has 8 divisors (see below), whose sum is σ = 24190624992. Its totient is φ = 17880025536.

The previous prime is 21013413313. The next prime is 21013413401. The reversal of 21013413323 is 32331431012.

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 21013413323 - 2⁴ = 21013413307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21013413313) 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, 10954940 + ... + 10956857.

It is an arithmetic number, because the mean of its divisors is an integer number (3023828124).

Almost surely, 2^21013413323 is an apocalyptic number.

21013413323 is a deficient number, since it is larger than the sum of its proper divisors (3177211669).

21013413323 is a wasteful number, since it uses less digits than its factorization.

21013413323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21911941.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 21013413323 its reverse (32331431012), we get a palindrome (53344844335).

The spelling of 21013413323 in words is "twenty-one billion, thirteen million, four hundred thirteen thousand, three hundred twenty-three".