121632331 has 8 divisors (see below), whose sum is σ = 129444480. Its totient is φ = 113893248.

The previous prime is 121632307. The next prime is 121632359. The reversal of 121632331 is 133236121.

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 121632331 - 2²¹ = 119535179 is a prime.

It is a super-2 number, since 2×121632331² = 29588847888987122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121632361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14811 + ... + 21508.

It is an arithmetic number, because the mean of its divisors is an integer number (16180560).

Almost surely, 2^121632331 is an apocalyptic number.

121632331 is a deficient number, since it is larger than the sum of its proper divisors (7812149).

121632331 is a wasteful number, since it uses less digits than its factorization.

121632331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36533.

The product of its digits is 648, while the sum is 22.

The square root of 121632331 is about 11028.7048650329. The cubic root of 121632331 is about 495.4688358107.

Adding to 121632331 its reverse (133236121), we get a palindrome (254868452).

The spelling of 121632331 in words is "one hundred twenty-one million, six hundred thirty-two thousand, three hundred thirty-one".