121349893895 has 4 divisors (see below), whose sum is σ = 145619872680. Its totient is φ = 97079915112.

The previous prime is 121349893879. The next prime is 121349893897. The reversal of 121349893895 is 598398943121.

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

It is a cyclic number.

It is not a de Polignac number, because 121349893895 - 2⁴ = 121349893879 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121349893897) 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, 12134989385 + ... + 12134989394.

It is an arithmetic number, because the mean of its divisors is an integer number (36404968170).

Almost surely, 2^121349893895 is an apocalyptic number.

121349893895 is a deficient number, since it is larger than the sum of its proper divisors (24269978785).

121349893895 is an equidigital number, since it uses as much as digits as its factorization.

121349893895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24269978784.

The product of its digits is 16796160, while the sum is 62.

The spelling of 121349893895 in words is "one hundred twenty-one billion, three hundred forty-nine million, eight hundred ninety-three thousand, eight hundred ninety-five".