121320103321 has 8 divisors (see below), whose sum is σ = 121465261800. Its totient is φ = 121175020032.

The previous prime is 121320103301. The next prime is 121320103393. The reversal of 121320103321 is 123301023121.

It can be written as a sum of positive squares in 4 ways, for example, as 424813321 + 120895290000 = 20611^2 + 347700^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121320103321 - 2⁷ = 121320103193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121320103301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3620781 + ... + 3654133.

It is an arithmetic number, because the mean of its divisors is an integer number (15183157725).

Almost surely, 2^121320103321 is an apocalyptic number.

It is an amenable number.

121320103321 is a deficient number, since it is larger than the sum of its proper divisors (145158479).

121320103321 is a wasteful number, since it uses less digits than its factorization.

121320103321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37595.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 121320103321 its reverse (123301023121), we get a palindrome (244621126442).

The spelling of 121320103321 in words is "one hundred twenty-one billion, three hundred twenty million, one hundred three thousand, three hundred twenty-one".