121331353 has 12 divisors (see below), whose sum is σ = 143328528. Its totient is φ = 101814960.

The previous prime is 121331347. The next prime is 121331381. The reversal of 121331353 is 353133121.

It is a happy number.

It is not a de Polignac number, because 121331353 - 2²⁵ = 87776921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121331333) 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 11 ways as a sum of consecutive naturals, for example, 30775 + ... + 34492.

It is an arithmetic number, because the mean of its divisors is an integer number (11944044).

Almost surely, 2^121331353 is an apocalyptic number.

121331353 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

121331353 is a deficient number, since it is larger than the sum of its proper divisors (21997175).

121331353 is a wasteful number, since it uses less digits than its factorization.

121331353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65304 (or 65291 counting only the distinct ones).

The product of its digits is 810, while the sum is 22.

The square root of 121331353 is about 11015.0512027861. The cubic root of 121331353 is about 495.0598206791.

Adding to 121331353 its reverse (353133121), we get a palindrome (474464474).

The spelling of 121331353 in words is "one hundred twenty-one million, three hundred thirty-one thousand, three hundred fifty-three".