12121311301113 has 64 divisors (see below), whose sum is σ = 19724439601152. Its totient is φ = 6470390203200.

The previous prime is 12121311301049. The next prime is 12121311301171. The reversal of 12121311301113 is 31110311312121.

It is not a de Polignac number, because 12121311301113 - 2⁶ = 12121311301049 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 12121311301113.

It is not an unprimeable number, because it can be changed into a prime (12121311301013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 179140338 + ... + 179207988.

It is an arithmetic number, because the mean of its divisors is an integer number (308194368768).

Almost surely, 2^{12121311301113} is an apocalyptic number.

It is an amenable number.

12121311301113 is a deficient number, since it is larger than the sum of its proper divisors (7603128300039).

12121311301113 is a wasteful number, since it uses less digits than its factorization.

12121311301113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76354.

The product of its (nonzero) digits is 108, while the sum is 21.

Adding to 12121311301113 its reverse (31110311312121), we get a palindrome (43231622613234).

The spelling of 12121311301113 in words is "twelve trillion, one hundred twenty-one billion, three hundred eleven million, three hundred one thousand, one hundred thirteen".