121351683 has 4 divisors (see below), whose sum is σ = 161802248. Its totient is φ = 80901120.

The previous prime is 121351669. The next prime is 121351733. The reversal of 121351683 is 386153121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 386153121 = 3 ⋅128717707.

It is not a de Polignac number, because 121351683 - 2⁴ = 121351667 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 121351683.

It is not an unprimeable number, because it can be changed into a prime (121351883) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20225278 + ... + 20225283.

It is an arithmetic number, because the mean of its divisors is an integer number (40450562).

Almost surely, 2^121351683 is an apocalyptic number.

121351683 is a deficient number, since it is larger than the sum of its proper divisors (40450565).

121351683 is an equidigital number, since it uses as much as digits as its factorization.

121351683 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40450564.

The product of its digits is 4320, while the sum is 30.

The square root of 121351683 is about 11015.9739923440. The cubic root of 121351683 is about 495.0874694932.

The spelling of 121351683 in words is "one hundred twenty-one million, three hundred fifty-one thousand, six hundred eighty-three".