121302242343 has 24 divisors (see below), whose sum is σ = 178018109568. Its totient is φ = 79576679952.

The previous prime is 121302242339. The next prime is 121302242353. The reversal of 121302242343 is 343242203121.

121302242343 is a `hidden beast` number, since 1 + 213 + 0 + 22 + 423 + 4 + 3 = 666.

It is not a de Polignac number, because 121302242343 - 2² = 121302242339 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121302242353) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 464830 + ... + 677252.

It is an arithmetic number, because the mean of its divisors is an integer number (7417421232).

Almost surely, 2^121302242343 is an apocalyptic number.

121302242343 is a deficient number, since it is larger than the sum of its proper divisors (56715867225).

121302242343 is a wasteful number, since it uses less digits than its factorization.

121302242343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213443 (or 213440 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 121302242343 its reverse (343242203121), we get a palindrome (464544445464).

The spelling of 121302242343 in words is "one hundred twenty-one billion, three hundred two million, two hundred forty-two thousand, three hundred forty-three".