121031133 has 4 divisors (see below), whose sum is σ = 161374848. Its totient is φ = 80687420.

The previous prime is 121031117. The next prime is 121031147. The reversal of 121031133 is 331130121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 121031133 - 2⁴ = 121031117 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121031233) 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 3 ways as a sum of consecutive naturals, for example, 20171853 + ... + 20171858.

It is an arithmetic number, because the mean of its divisors is an integer number (40343712).

Almost surely, 2^121031133 is an apocalyptic number.

It is an amenable number.

121031133 is a deficient number, since it is larger than the sum of its proper divisors (40343715).

121031133 is an equidigital number, since it uses as much as digits as its factorization.

121031133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40343714.

The product of its (nonzero) digits is 54, while the sum is 15.

The square root of 121031133 is about 11001.4150453476. The cubic root of 121031133 is about 494.6511612217.

Adding to 121031133 its reverse (331130121), we get a palindrome (452161254).

The spelling of 121031133 in words is "one hundred twenty-one million, thirty-one thousand, one hundred thirty-three".