121133311 has 8 divisors (see below), whose sum is σ = 133633584. Its totient is φ = 109087680.

The previous prime is 121133293. The next prime is 121133317. The reversal of 121133311 is 113331121.

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

It is a de Polignac number, because none of the positive numbers 2^k-121133311 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121133317) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 113101 + ... + 114166.

It is an arithmetic number, because the mean of its divisors is an integer number (16704198).

Almost surely, 2^121133311 is an apocalyptic number.

121133311 is a deficient number, since it is larger than the sum of its proper divisors (12500273).

121133311 is a wasteful number, since it uses less digits than its factorization.

121133311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227321.

The product of its digits is 54, while the sum is 16.

The square root of 121133311 is about 11006.0579227987. The cubic root of 121133311 is about 494.7903216967.

Adding to 121133311 its reverse (113331121), we get a palindrome (234464432).

The spelling of 121133311 in words is "one hundred twenty-one million, one hundred thirty-three thousand, three hundred eleven".