121230785 has 16 divisors (see below), whose sum is σ = 156897216. Its totient is φ = 89393088.

The previous prime is 121230779. The next prime is 121230787. The reversal of 121230785 is 587032121.

It is a cyclic number.

It is not a de Polignac number, because 121230785 - 2¹⁶ = 121165249 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121230787) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 84242 + ... + 85668.

It is an arithmetic number, because the mean of its divisors is an integer number (9806076).

Almost surely, 2^121230785 is an apocalyptic number.

It is an amenable number.

121230785 is a deficient number, since it is larger than the sum of its proper divisors (35666431).

121230785 is a wasteful number, since it uses less digits than its factorization.

121230785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2752.

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 121230785 is about 11010.4852299978. The cubic root of 121230785 is about 494.9230026820.

The spelling of 121230785 in words is "one hundred twenty-one million, two hundred thirty thousand, seven hundred eighty-five".