13001210021 has 8 divisors (see below), whose sum is σ = 13148084544. Its totient is φ = 12854597760.

The previous prime is 13001210017. The next prime is 13001210039. The reversal of 13001210021 is 12001210031.

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 13001210021 - 2² = 13001210017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13001209984 and 13001210011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13001210011) 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, 35006 + ... + 165008.

It is an arithmetic number, because the mean of its divisors is an integer number (1643510568).

Almost surely, 2^13001210021 is an apocalyptic number.

It is an amenable number.

13001210021 is a deficient number, since it is larger than the sum of its proper divisors (146874523).

13001210021 is a wasteful number, since it uses less digits than its factorization.

13001210021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131131.

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 13001210021 its reverse (12001210031), we get a palindrome (25002420052).

The spelling of 13001210021 in words is "thirteen billion, one million, two hundred ten thousand, twenty-one".