121243443 has 8 divisors (see below), whose sum is σ = 161715648. Its totient is φ = 80800104.

The previous prime is 121243399. The next prime is 121243457. The reversal of 121243443 is 344342121.

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

It is not a de Polignac number, because 121243443 - 2¹³ = 121235251 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121243943) 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, 6096 + ... + 16722.

It is an arithmetic number, because the mean of its divisors is an integer number (20214456).

Almost surely, 2^121243443 is an apocalyptic number.

121243443 is a deficient number, since it is larger than the sum of its proper divisors (40472205).

121243443 is a wasteful number, since it uses less digits than its factorization.

121243443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14433.

The product of its digits is 2304, while the sum is 24.

The square root of 121243443 is about 11011.0600307146. The cubic root of 121243443 is about 494.9402274525.

Adding to 121243443 its reverse (344342121), we get a palindrome (465585564).

The spelling of 121243443 in words is "one hundred twenty-one million, two hundred forty-three thousand, four hundred forty-three".