121102321 has 2 divisors, whose sum is σ = 121102322. Its totient is φ = 121102320.

The previous prime is 121102307. The next prime is 121102363. The reversal of 121102321 is 123201121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 120209296 + 893025 = 10964^2 + 945^2 .

It is a cyclic number.

It is not a de Polignac number, because 121102321 - 2⁹ = 121101809 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (121102381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60551160 + 60551161.

It is an arithmetic number, because the mean of its divisors is an integer number (60551161).

Almost surely, 2^121102321 is an apocalyptic number.

It is an amenable number.

121102321 is a deficient number, since it is larger than the sum of its proper divisors (1).

121102321 is an equidigital number, since it uses as much as digits as its factorization.

121102321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 121102321 is about 11004.6499717165. The cubic root of 121102321 is about 494.7481233954.

Adding to 121102321 its reverse (123201121), we get a palindrome (244303442).

The spelling of 121102321 in words is "one hundred twenty-one million, one hundred two thousand, three hundred twenty-one".