121342042 has 8 divisors (see below), whose sum is σ = 186452532. Its totient is φ = 59191200.

The previous prime is 121342031. The next prime is 121342049. The reversal of 121342042 is 240243121.

It can be written as a sum of positive squares in 2 ways, for example, as 85951441 + 35390601 = 9271^2 + 5949^2 .

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

It is not an unprimeable number, because it can be changed into a prime (121342049) 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, 739809 + ... + 739972.

Almost surely, 2^121342042 is an apocalyptic number.

121342042 is a deficient number, since it is larger than the sum of its proper divisors (65110490).

121342042 is a wasteful number, since it uses less digits than its factorization.

121342042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1479824.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 121342042 is about 11015.5363918422. The cubic root of 121342042 is about 495.0743581115.

Adding to 121342042 its reverse (240243121), we get a palindrome (361585163).

The spelling of 121342042 in words is "one hundred twenty-one million, three hundred forty-two thousand, forty-two".