121042 has 4 divisors (see below), whose sum is σ = 181566. Its totient is φ = 60520.

The previous prime is 121039. The next prime is 121061. The reversal of 121042 is 240121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 240121 = 7 ⋅34303.

It can be written as a sum of positive squares in only one way, i.e., 116281 + 4761 = 341^2 + 69^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30259 + ... + 30262.

2¹²¹⁰⁴² is an apocalyptic number.

121042 is a deficient number, since it is larger than the sum of its proper divisors (60524).

121042 is an equidigital number, since it uses as much as digits as its factorization.

121042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60523.

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 121042 is about 347.9109081360. The cubic root of 121042 is about 49.4665965163.

Adding to 121042 its reverse (240121), we get a palindrome (361163).

The spelling of 121042 in words is "one hundred twenty-one thousand, forty-two", and thus it is an iban number.