121133020231 has 16 divisors (see below), whose sum is σ = 123013302048. Its totient is φ = 119266560000.

The previous prime is 121133020201. The next prime is 121133020247. The reversal of 121133020231 is 132020331121.

It is a cyclic number.

It is not a de Polignac number, because 121133020231 - 2⁷ = 121133020103 is a prime.

It is a super-2 number, since 2×121133020231² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121133020199 and 121133020208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121133020201) 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 15 ways as a sum of consecutive naturals, for example, 50873661 + ... + 50876041.

It is an arithmetic number, because the mean of its divisors is an integer number (7688331378).

Almost surely, 2^121133020231 is an apocalyptic number.

121133020231 is a deficient number, since it is larger than the sum of its proper divisors (1880281817).

121133020231 is a wasteful number, since it uses less digits than its factorization.

121133020231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4962.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 121133020231 its reverse (132020331121), we get a palindrome (253153351352).

The spelling of 121133020231 in words is "one hundred twenty-one billion, one hundred thirty-three million, twenty thousand, two hundred thirty-one".