21233013130313 has 4 divisors (see below), whose sum is σ = 21233044673280. Its totient is φ = 21232981587348.

The previous prime is 21233013130309. The next prime is 21233013130331. The reversal of 21233013130313 is 31303131033212.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 21233013130313 - 2² = 21233013130309 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (21233013130363) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14739245 + ... + 16115562.

It is an arithmetic number, because the mean of its divisors is an integer number (5308261168320).

Almost surely, 2^{21233013130313} is an apocalyptic number.

It is an amenable number.

21233013130313 is a deficient number, since it is larger than the sum of its proper divisors (31542967).

21233013130313 is an equidigital number, since it uses as much as digits as its factorization.

21233013130313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31542966.

The product of its (nonzero) digits is 2916, while the sum is 26.

Adding to 21233013130313 its reverse (31303131033212), we get a palindrome (52536144163525).

The spelling of 21233013130313 in words is "twenty-one trillion, two hundred thirty-three billion, thirteen million, one hundred thirty thousand, three hundred thirteen".