13013030021 has 16 divisors (see below), whose sum is σ = 13519491840. Its totient is φ = 12519074880.

The previous prime is 13013029987. The next prime is 13013030059. The reversal of 13013030021 is 12003031031.

It is a cyclic number.

It is not a de Polignac number, because 13013030021 - 2⁶ = 13013029957 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13013029978 and 13013030005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13013036021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 503015 + ... + 528251.

It is an arithmetic number, because the mean of its divisors is an integer number (844968240).

Almost surely, 2^13013030021 is an apocalyptic number.

It is an amenable number.

13013030021 is a deficient number, since it is larger than the sum of its proper divisors (506461819).

13013030021 is a wasteful number, since it uses less digits than its factorization.

13013030021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25484.

The product of its (nonzero) digits is 54, while the sum is 14.

Adding to 13013030021 its reverse (12003031031), we get a palindrome (25016061052).

The spelling of 13013030021 in words is "thirteen billion, thirteen million, thirty thousand, twenty-one".