121242369 has 8 divisors (see below), whose sum is σ = 163933632. Its totient is φ = 79689680.

The previous prime is 121242367. The next prime is 121242391. The reversal of 121242369 is 963242121.

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

It is a cyclic number.

It is not a de Polignac number, because 121242369 - 2¹ = 121242367 is a prime.

It is a super-2 number, since 2×121242369² = 29399424081464322, which contains 22 as substring.

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, 284394 + ... + 284819.

It is an arithmetic number, because the mean of its divisors is an integer number (20491704).

Almost surely, 2^121242369 is an apocalyptic number.

It is an amenable number.

121242369 is a deficient number, since it is larger than the sum of its proper divisors (42691263).

121242369 is an equidigital number, since it uses as much as digits as its factorization.

121242369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 569287.

The product of its digits is 5184, while the sum is 30.

The square root of 121242369 is about 11011.0112614600. The cubic root of 121242369 is about 494.9387660199.

The spelling of 121242369 in words is "one hundred twenty-one million, two hundred forty-two thousand, three hundred sixty-nine".