121613103911 has 16 divisors (see below), whose sum is σ = 137166597120. Its totient is φ = 106981158240.

The previous prime is 121613103907. The next prime is 121613103919. The reversal of 121613103911 is 119301316121.

It is a cyclic number.

It is not a de Polignac number, because 121613103911 - 2² = 121613103907 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 (121613103919) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 669401 + ... + 831458.

It is an arithmetic number, because the mean of its divisors is an integer number (8572912320).

Almost surely, 2^121613103911 is an apocalyptic number.

121613103911 is a deficient number, since it is larger than the sum of its proper divisors (15553493209).

121613103911 is a wasteful number, since it uses less digits than its factorization.

121613103911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1501166.

The product of its (nonzero) digits is 972, while the sum is 29.

The spelling of 121613103911 in words is "one hundred twenty-one billion, six hundred thirteen million, one hundred three thousand, nine hundred eleven".