121412042 has 4 divisors (see below), whose sum is σ = 182118066. Its totient is φ = 60706020.

The previous prime is 121411993. The next prime is 121412069. The reversal of 121412042 is 240214121.

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

It can be written as a sum of positive squares in only one way, i.e., 120802081 + 609961 = 10991^2 + 781^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 121412042.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30353009 + ... + 30353012.

Almost surely, 2^121412042 is an apocalyptic number.

121412042 is a deficient number, since it is larger than the sum of its proper divisors (60706024).

121412042 is an equidigital number, since it uses as much as digits as its factorization.

121412042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60706023.

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 121412042 is about 11018.7132642609. The cubic root of 121412042 is about 495.1695395855.

Adding to 121412042 its reverse (240214121), we get a palindrome (361626163).

The spelling of 121412042 in words is "one hundred twenty-one million, four hundred twelve thousand, forty-two".