121136331 has 8 divisors (see below), whose sum is σ = 168537600. Its totient is φ = 77246312.

The previous prime is 121136317. The next prime is 121136341. The reversal of 121136331 is 133631121.

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 121136331 - 2⁵ = 121136299 is a prime.

It is a super-2 number, since 2×121136331² = 29348021376283122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121136298 and 121136307.

It is not an unprimeable number, because it can be changed into a prime (121136311) 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, 877731 + ... + 877868.

It is an arithmetic number, because the mean of its divisors is an integer number (21067200).

Almost surely, 2^121136331 is an apocalyptic number.

121136331 is a deficient number, since it is larger than the sum of its proper divisors (47401269).

121136331 is a wasteful number, since it uses less digits than its factorization.

121136331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1755625.

The product of its digits is 324, while the sum is 21.

The square root of 121136331 is about 11006.1951191136. The cubic root of 121136331 is about 494.7944335697.

Adding to 121136331 its reverse (133631121), we get a palindrome (254767452).

The spelling of 121136331 in words is "one hundred twenty-one million, one hundred thirty-six thousand, three hundred thirty-one".