121363494363121 has 4 divisors (see below), whose sum is σ = 121363516396144. Its totient is φ = 121363472330100.

The previous prime is 121363494363113. The next prime is 121363494363191.

121363494363121 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 121363494363121 - 2³ = 121363494363113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121363494363191) 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, 5501506 + ... + 16522516.

It is an arithmetic number, because the mean of its divisors is an integer number (30340879099036).

Almost surely, 2^{121363494363121} is an apocalyptic number.

It is an amenable number.

121363494363121 is a deficient number, since it is larger than the sum of its proper divisors (22033023).

121363494363121 is a wasteful number, since it uses less digits than its factorization.

121363494363121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22033022.

The product of its digits is 1679616, while the sum is 49.

The spelling of 121363494363121 in words is "one hundred twenty-one trillion, three hundred sixty-three billion, four hundred ninety-four million, three hundred sixty-three thousand, one hundred twenty-one".