121101110993 has 4 divisors (see below), whose sum is σ = 121210310580. Its totient is φ = 120991911408.

The previous prime is 121101110987. The next prime is 121101111007. The reversal of 121101110993 is 399011101121.

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

It can be written as a sum of positive squares in 2 ways, for example, as 7574569024 + 113526541969 = 87032^2 + 336937^2 .

It is a cyclic number.

It is not a de Polignac number, because 121101110993 - 2⁶ = 121101110929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121101118993) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54598130 + ... + 54600347.

It is an arithmetic number, because the mean of its divisors is an integer number (30302577645).

Almost surely, 2^121101110993 is an apocalyptic number.

It is an amenable number.

121101110993 is a deficient number, since it is larger than the sum of its proper divisors (109199587).

121101110993 is a wasteful number, since it uses less digits than its factorization.

121101110993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109199586.

The product of its (nonzero) digits is 486, while the sum is 29.

The spelling of 121101110993 in words is "one hundred twenty-one billion, one hundred one million, one hundred ten thousand, nine hundred ninety-three".