121320313111 has 16 divisors (see below), whose sum is σ = 122459420160. Its totient is φ = 120188232000.

The previous prime is 121320313109. The next prime is 121320313123. The reversal of 121320313111 is 111313023121.

It is a cyclic number.

It is not a de Polignac number, because 121320313111 - 2¹ = 121320313109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121320313151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43844050 + ... + 43846816.

It is an arithmetic number, because the mean of its divisors is an integer number (7653713760).

Almost surely, 2^121320313111 is an apocalyptic number.

121320313111 is a deficient number, since it is larger than the sum of its proper divisors (1139107049).

121320313111 is a wasteful number, since it uses less digits than its factorization.

121320313111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3894.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 121320313111 its reverse (111313023121), we get a palindrome (232633336232).

The spelling of 121320313111 in words is "one hundred twenty-one billion, three hundred twenty million, three hundred thirteen thousand, one hundred eleven".