121203112442 has 8 divisors (see below), whose sum is σ = 181913734656. Its totient is φ = 60565200892.

The previous prime is 121203112423. The next prime is 121203112463. The reversal of 121203112442 is 244211302121.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18173498 + ... + 18180165.

It is an arithmetic number, because the mean of its divisors is an integer number (22739216832).

Almost surely, 2^121203112442 is an apocalyptic number.

121203112442 is a deficient number, since it is larger than the sum of its proper divisors (60710622214).

121203112442 is a wasteful number, since it uses less digits than its factorization.

121203112442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36355332.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 121203112442 its reverse (244211302121), we get a palindrome (365414414563).

The spelling of 121203112442 in words is "one hundred twenty-one billion, two hundred three million, one hundred twelve thousand, four hundred forty-two".