121443342 has 32 divisors (see below), whose sum is σ = 258010272. Its totient is φ = 37976064.

The previous prime is 121443341. The next prime is 121443389. The reversal of 121443342 is 243344121.

It is a super-2 number, since 2×121443342² = 29496970632257928, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121443341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32608 + ... + 36140.

It is an arithmetic number, because the mean of its divisors is an integer number (8062821).

Almost surely, 2^121443342 is an apocalyptic number.

121443342 is an abundant number, since it is smaller than the sum of its proper divisors (136566930).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121443342 is a wasteful number, since it uses less digits than its factorization.

121443342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3892.

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

The square root of 121443342 is about 11020.1334837651. The cubic root of 121443342 is about 495.2120874653.

Adding to 121443342 its reverse (243344121), we get a palindrome (364787463).

The spelling of 121443342 in words is "one hundred twenty-one million, four hundred forty-three thousand, three hundred forty-two".