121110681561115 has 8 divisors (see below), whose sum is σ = 151651636041888. Its totient is φ = 92675999803200.

The previous prime is 121110681561091. The next prime is 121110681561119. The reversal of 121110681561115 is 511165186011121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 121110681561115 - 2⁵ = 121110681561083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121110681561119) 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, 526568180586 + ... + 526568180815.

It is an arithmetic number, because the mean of its divisors is an integer number (18956454505236).

Almost surely, 2^{121110681561115} is an apocalyptic number.

121110681561115 is a deficient number, since it is larger than the sum of its proper divisors (30540954480773).

121110681561115 is a wasteful number, since it uses less digits than its factorization.

121110681561115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1053136361429.

The product of its (nonzero) digits is 14400, while the sum is 40.

The spelling of 121110681561115 in words is "one hundred twenty-one trillion, one hundred ten billion, six hundred eighty-one million, five hundred sixty-one thousand, one hundred fifteen".