121003331 has 4 divisors (see below), whose sum is σ = 128121192. Its totient is φ = 113885472.

The previous prime is 121003319. The next prime is 121003349. The reversal of 121003331 is 133300121.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121003331 is a prime.

It is a super-2 number, since 2×121003331² = 29283612226191122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121003301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3558905 + ... + 3558938.

It is an arithmetic number, because the mean of its divisors is an integer number (32030298).

Almost surely, 2^121003331 is an apocalyptic number.

121003331 is a deficient number, since it is larger than the sum of its proper divisors (7117861).

121003331 is an equidigital number, since it uses as much as digits as its factorization.

121003331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7117860.

The product of its (nonzero) digits is 54, while the sum is 14.

The square root of 121003331 is about 11000.1514080489. The cubic root of 121003331 is about 494.6132829657.

Adding to 121003331 its reverse (133300121), we get a palindrome (254303452).

The spelling of 121003331 in words is "one hundred twenty-one million, three thousand, three hundred thirty-one".