121314243 has 4 divisors (see below), whose sum is σ = 161752328. Its totient is φ = 80876160.

The previous prime is 121314241. The next prime is 121314251. The reversal of 121314243 is 342413121.

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

It is not a de Polignac number, because 121314243 - 2¹ = 121314241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121314241) 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, 20219038 + ... + 20219043.

It is an arithmetic number, because the mean of its divisors is an integer number (40438082).

Almost surely, 2^121314243 is an apocalyptic number.

121314243 is a deficient number, since it is larger than the sum of its proper divisors (40438085).

121314243 is an equidigital number, since it uses as much as digits as its factorization.

121314243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40438084.

The product of its digits is 576, while the sum is 21.

The square root of 121314243 is about 11014.2745108337. The cubic root of 121314243 is about 495.0365486736.

Adding to 121314243 its reverse (342413121), we get a palindrome (463727364).

The spelling of 121314243 in words is "one hundred twenty-one million, three hundred fourteen thousand, two hundred forty-three".