121204230143 has 8 divisors (see below), whose sum is σ = 122924298240. Its totient is φ = 119484522360.

The previous prime is 121204230139. The next prime is 121204230163. The reversal of 121204230143 is 341032402121.

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

It is a cyclic number.

It is not a de Polignac number, because 121204230143 - 2² = 121204230139 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121204230113) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 627746 + ... + 797792.

It is an arithmetic number, because the mean of its divisors is an integer number (15365537280).

Almost surely, 2^121204230143 is an apocalyptic number.

121204230143 is a deficient number, since it is larger than the sum of its proper divisors (1720068097).

121204230143 is a wasteful number, since it uses less digits than its factorization.

121204230143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180157.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 121204230143 its reverse (341032402121), we get a palindrome (462236632264).

The spelling of 121204230143 in words is "one hundred twenty-one billion, two hundred four million, two hundred thirty thousand, one hundred forty-three".