13121321211302 has 16 divisors (see below), whose sum is σ = 20141656531920. Its totient is φ = 6407465309952.

The previous prime is 13121321211289. The next prime is 13121321211307. The reversal of 13121321211302 is 20311212312131.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13121321211307) 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, 6510227 + ... + 8284062.

It is an arithmetic number, because the mean of its divisors is an integer number (1258853533245).

Almost surely, 2^{13121321211302} is an apocalyptic number.

13121321211302 is a deficient number, since it is larger than the sum of its proper divisors (7020335320618).

13121321211302 is a wasteful number, since it uses less digits than its factorization.

13121321211302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14804647.

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 13121321211302 its reverse (20311212312131), we get a palindrome (33432533523433).

The spelling of 13121321211302 in words is "thirteen trillion, one hundred twenty-one billion, three hundred twenty-one million, two hundred eleven thousand, three hundred two".