121103321 has 4 divisors (see below), whose sum is σ = 127477200. Its totient is φ = 114729444.

The previous prime is 121103293. The next prime is 121103377. The reversal of 121103321 is 123301121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121103321 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121103296 and 121103305.

It is not an unprimeable number, because it can be changed into a prime (121103221) 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, 3186911 + ... + 3186948.

It is an arithmetic number, because the mean of its divisors is an integer number (31869300).

Almost surely, 2^121103321 is an apocalyptic number.

It is an amenable number.

121103321 is a deficient number, since it is larger than the sum of its proper divisors (6373879).

121103321 is an equidigital number, since it uses as much as digits as its factorization.

121103321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6373878.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 121103321 is about 11004.6954069615. The cubic root of 121103321 is about 494.7494851826.

Adding to 121103321 its reverse (123301121), we get a palindrome (244404442).

The spelling of 121103321 in words is "one hundred twenty-one million, one hundred three thousand, three hundred twenty-one".