121920734 has 8 divisors (see below), whose sum is σ = 196948920. Its totient is φ = 56271096.

The previous prime is 121920697. The next prime is 121920763. The reversal of 121920734 is 437029121.

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

It is a junction number, because it is equal to n+sod(n) for n = 121920697 and 121920706.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2344604 + ... + 2344655.

It is an arithmetic number, because the mean of its divisors is an integer number (24618615).

Almost surely, 2^121920734 is an apocalyptic number.

121920734 is a deficient number, since it is larger than the sum of its proper divisors (75028186).

121920734 is a wasteful number, since it uses less digits than its factorization.

121920734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4689274.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 121920734 is about 11041.7722309419. The cubic root of 121920734 is about 495.8601295470.

Adding to 121920734 its reverse (437029121), we get a palindrome (558949855).

The spelling of 121920734 in words is "one hundred twenty-one million, nine hundred twenty thousand, seven hundred thirty-four".