21310000613 has 8 divisors (see below), whose sum is σ = 23271079680. Its totient is φ = 19352889280.

The previous prime is 21310000573. The next prime is 21310000693. The reversal of 21310000613 is 31600001312.

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 21310000613 - 2¹⁴ = 21309984229 is a prime.

It is a super-2 number, since 2×21310000613² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 21310000591 and 21310000600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21310000693) 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, 980693 + ... + 1002186.

It is an arithmetic number, because the mean of its divisors is an integer number (2908884960).

Almost surely, 2^21310000613 is an apocalyptic number.

It is an amenable number.

21310000613 is a deficient number, since it is larger than the sum of its proper divisors (1961079067).

21310000613 is a wasteful number, since it uses less digits than its factorization.

21310000613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1983867.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 21310000613 its reverse (31600001312), we get a palindrome (52910001925).

The spelling of 21310000613 in words is "twenty-one billion, three hundred ten million, six hundred thirteen", and thus it is an aban number.