121696043 has 4 divisors (see below), whose sum is σ = 139081200. Its totient is φ = 104310888.

The previous prime is 121696027. The next prime is 121696051. The reversal of 121696043 is 340696121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 340696121 = 137 ⋅2486833.

It is a cyclic number.

It is not a de Polignac number, because 121696043 - 2⁴ = 121696027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121696543) 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, 8692568 + ... + 8692581.

It is an arithmetic number, because the mean of its divisors is an integer number (34770300).

Almost surely, 2^121696043 is an apocalyptic number.

121696043 is a deficient number, since it is larger than the sum of its proper divisors (17385157).

121696043 is an equidigital number, since it uses as much as digits as its factorization.

121696043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17385156.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 121696043 is about 11031.5929493433. The cubic root of 121696043 is about 495.5553309064. Note that the first 3 decimals are identical.

The spelling of 121696043 in words is "one hundred twenty-one million, six hundred ninety-six thousand, forty-three".