121302130142 has 8 divisors (see below), whose sum is σ = 185824539936. Its totient is φ = 59360616832.

The previous prime is 121302130139. The next prime is 121302130151. The reversal of 121302130142 is 241031203121.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 645224003 + ... + 645224190.

It is an arithmetic number, because the mean of its divisors is an integer number (23228067492).

Almost surely, 2^121302130142 is an apocalyptic number.

121302130142 is a deficient number, since it is larger than the sum of its proper divisors (64522409794).

121302130142 is a wasteful number, since it uses less digits than its factorization.

121302130142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1290448242.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 121302130142 its reverse (241031203121), we get a palindrome (362333333263).

The spelling of 121302130142 in words is "one hundred twenty-one billion, three hundred two million, one hundred thirty thousand, one hundred forty-two".