121321013000111 has 4 divisors (see below), whose sum is σ = 121646270407992. Its totient is φ = 120995755592232.

The previous prime is 121321013000107. The next prime is 121321013000119. The reversal of 121321013000111 is 111000310123121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 121321013000111 - 2² = 121321013000107 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 121321013000111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121321013000119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 162628703381 + ... + 162628704126.

It is an arithmetic number, because the mean of its divisors is an integer number (30411567601998).

Almost surely, 2^{121321013000111} is an apocalyptic number.

121321013000111 is a deficient number, since it is larger than the sum of its proper divisors (325257407881).

121321013000111 is an equidigital number, since it uses as much as digits as its factorization.

121321013000111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325257407880.

The product of its (nonzero) digits is 36, while the sum is 17.

Adding to 121321013000111 its reverse (111000310123121), we get a palindrome (232321323123232).

The spelling of 121321013000111 in words is "one hundred twenty-one trillion, three hundred twenty-one billion, thirteen million, one hundred eleven", and thus it is an aban number.