121233011 has 4 divisors (see below), whose sum is σ = 121345224.
Its totient is φ = 121120800.
The previous prime is 121232987. The next prime is 121233019. The reversal of 121233011 is 110332121.
Adding to 121233011 its reverse (110332121), we get a palindrome (231565132).
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 121233011 - 210 = 121231987 is a prime.
It is a super-2 number, since 2×1212330112 = 29394885912252242, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (121233019) 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, 54470 + ... + 56651.
It is an arithmetic number, because the mean of its divisors is an integer number (30336306).
Almost surely, 2121233011 is an apocalyptic number.
121233011 is a deficient number, since it is larger than the sum of its proper divisors (112213).
121233011 is a wasteful number, since it uses less digits than its factorization.
121233011 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 112212.
The product of its (nonzero) digits is 36, while the sum is 14.
The square root of 121233011 is about 11010.5863149970.
The cubic root of 121233011 is about 494.9260318682.
The spelling of 121233011 in words is "one hundred twenty-one million, two hundred thirty-three thousand, eleven".