13121021201213 has 8 divisors (see below), whose sum is σ = 13173139541760. Its totient is φ = 13068930076560.

The previous prime is 13121021201201. The next prime is 13121021201219. The reversal of 13121021201213 is 31210212012131.

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 13121021201213 - 2²⁶ = 13120954092349 is a prime.

It is a super-2 number, since 2×13121021201213² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13121021201219) 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, 5837570 + ... + 7766547.

It is an arithmetic number, because the mean of its divisors is an integer number (1646642442720).

Almost surely, 2^{13121021201213} is an apocalyptic number.

It is an amenable number.

13121021201213 is a deficient number, since it is larger than the sum of its proper divisors (52118340547).

13121021201213 is a wasteful number, since it uses less digits than its factorization.

13121021201213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13607947.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 13121021201213 its reverse (31210212012131), we get a palindrome (44331233213344).

The spelling of 13121021201213 in words is "thirteen trillion, one hundred twenty-one billion, twenty-one million, two hundred one thousand, two hundred thirteen".