121343442 has 32 divisors (see below), whose sum is σ = 265192704. Its totient is φ = 36709200.

The previous prime is 121343441. The next prime is 121343483. The reversal of 121343442 is 244343121.

It is not an unprimeable number, because it can be changed into a prime (121343441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52393 + ... + 54659.

It is an arithmetic number, because the mean of its divisors is an integer number (8287272).

Almost surely, 2^121343442 is an apocalyptic number.

121343442 is an abundant number, since it is smaller than the sum of its proper divisors (143849262).

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

121343442 is a wasteful number, since it uses less digits than its factorization.

121343442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3094.

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

The square root of 121343442 is about 11015.5999382694. The cubic root of 121343442 is about 495.0762620997.

Adding to 121343442 its reverse (244343121), we get a palindrome (365686563).

It can be divided in two parts, 12134 and 3442, that added together give a triangular number (15576 = T₁₇₆).

The spelling of 121343442 in words is "one hundred twenty-one million, three hundred forty-three thousand, four hundred forty-two".