121312235 has 32 divisors (see below), whose sum is σ = 169827840. Its totient is φ = 82297600.

The previous prime is 121312229. The next prime is 121312253. The reversal of 121312235 is 532213121.

It is not a de Polignac number, because 121312235 - 2⁶ = 121312171 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 50696 + ... + 53034.

It is an arithmetic number, because the mean of its divisors is an integer number (5307120).

Almost surely, 2^121312235 is an apocalyptic number.

121312235 is a deficient number, since it is larger than the sum of its proper divisors (48515605).

121312235 is a wasteful number, since it uses less digits than its factorization.

121312235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2419.

The product of its digits is 360, while the sum is 20.

The square root of 121312235 is about 11014.1833560187. The cubic root of 121312235 is about 495.0338173679.

Adding to 121312235 its reverse (532213121), we get a palindrome (653525356).

The spelling of 121312235 in words is "one hundred twenty-one million, three hundred twelve thousand, two hundred thirty-five".