121353331 has 4 divisors (see below), whose sum is σ = 132385464. Its totient is φ = 110321200.

The previous prime is 121353269. The next prime is 121353343. The reversal of 121353331 is 133353121.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 121353331 - 2⁷ = 121353203 is a prime.

It is a super-2 number, since 2×121353331² = 29453261889591122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121356331) 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 3 ways as a sum of consecutive naturals, for example, 5516050 + ... + 5516071.

It is an arithmetic number, because the mean of its divisors is an integer number (33096366).

Almost surely, 2^121353331 is an apocalyptic number.

121353331 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

121353331 is a deficient number, since it is larger than the sum of its proper divisors (11032133).

121353331 is a wasteful number, since it uses less digits than its factorization.

121353331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11032132.

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

The square root of 121353331 is about 11016.0487925572. The cubic root of 121353331 is about 495.0897106391.

The spelling of 121353331 in words is "one hundred twenty-one million, three hundred fifty-three thousand, three hundred thirty-one".