121042143042 has 8 divisors (see below), whose sum is σ = 242084286096. Its totient is φ = 40347381012.

The previous prime is 121042143023. The next prime is 121042143137. The reversal of 121042143042 is 240341240121.

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

121042143042 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10086845248 + ... + 10086845259.

It is an arithmetic number, because the mean of its divisors is an integer number (30260535762).

Almost surely, 2^121042143042 is an apocalyptic number.

121042143042 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121042143042 is a wasteful number, since it uses less digits than its factorization.

121042143042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20173690512.

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 121042143042 its reverse (240341240121), we get a palindrome (361383383163).

The spelling of 121042143042 in words is "one hundred twenty-one billion, forty-two million, one hundred forty-three thousand, forty-two".