121044142 has 4 divisors (see below), whose sum is σ = 181566216. Its totient is φ = 60522070.

The previous prime is 121044139. The next prime is 121044151. The reversal of 121044142 is 241440121.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30261034 + ... + 30261037.

It is an arithmetic number, because the mean of its divisors is an integer number (45391554).

Almost surely, 2^121044142 is an apocalyptic number.

121044142 is a deficient number, since it is larger than the sum of its proper divisors (60522074).

121044142 is an equidigital number, since it uses as much as digits as its factorization.

121044142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60522073.

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 121044142 is about 11002.0062715852. The cubic root of 121044142 is about 494.6688830708.

Adding to 121044142 its reverse (241440121), we get a palindrome (362484263).

The spelling of 121044142 in words is "one hundred twenty-one million, forty-four thousand, one hundred forty-two".