121242361 has 8 divisors (see below), whose sum is σ = 126681984. Its totient is φ = 115816800.

The previous prime is 121242313. The next prime is 121242367. The reversal of 121242361 is 163242121.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121242361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121242367) 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, 16636 + ... + 22786.

It is an arithmetic number, because the mean of its divisors is an integer number (15835248).

Almost surely, 2^121242361 is an apocalyptic number.

It is an amenable number.

121242361 is a deficient number, since it is larger than the sum of its proper divisors (5439623).

121242361 is an equidigital number, since it uses as much as digits as its factorization.

121242361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7031.

The product of its digits is 576, while the sum is 22.

The square root of 121242361 is about 11011.0108981873. The cubic root of 121242361 is about 494.9387551340.

Adding to 121242361 its reverse (163242121), we get a palindrome (284484482).

The spelling of 121242361 in words is "one hundred twenty-one million, two hundred forty-two thousand, three hundred sixty-one".