21234130313 has 8 divisors (see below), whose sum is σ = 24527124000. Its totient is φ = 18168239680.

The previous prime is 21234130303. The next prime is 21234130319. The reversal of 21234130313 is 31303143212.

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 21234130313 - 2⁶ = 21234130249 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21234130319) 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, 56775563 + ... + 56775936.

It is an arithmetic number, because the mean of its divisors is an integer number (3065890500).

Almost surely, 2^21234130313 is an apocalyptic number.

It is an amenable number.

21234130313 is a deficient number, since it is larger than the sum of its proper divisors (3292993687).

21234130313 is a wasteful number, since it uses less digits than its factorization.

21234130313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113551527.

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

Adding to 21234130313 its reverse (31303143212), we get a palindrome (52537273525).

The spelling of 21234130313 in words is "twenty-one billion, two hundred thirty-four million, one hundred thirty thousand, three hundred thirteen".