121137233 has 8 divisors (see below), whose sum is σ = 138620160. Its totient is φ = 103698720.

The previous prime is 121137229. The next prime is 121137281. The reversal of 121137233 is 332731121.

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

It is a cyclic number.

It is not a de Polignac number, because 121137233 - 2² = 121137229 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121137199 and 121137208.

It is not an unprimeable number, because it can be changed into a prime (121137433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5033 + ... + 16358.

It is an arithmetic number, because the mean of its divisors is an integer number (17327520).

Almost surely, 2^121137233 is an apocalyptic number.

It is an amenable number.

121137233 is a deficient number, since it is larger than the sum of its proper divisors (17482927).

121137233 is an equidigital number, since it uses as much as digits as its factorization.

121137233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22207.

The product of its digits is 756, while the sum is 23.

The square root of 121137233 is about 11006.2360959594. The cubic root of 121137233 is about 494.7956616721.

Adding to 121137233 its reverse (332731121), we get a palindrome (453868354).

The spelling of 121137233 in words is "one hundred twenty-one million, one hundred thirty-seven thousand, two hundred thirty-three".