121030321321 has 16 divisors (see below), whose sum is σ = 149852392704. Its totient is φ = 95186827584.

The previous prime is 121030321319. The next prime is 121030321333. The reversal of 121030321321 is 123123030121.

It is a cyclic number.

It is not a de Polignac number, because 121030321321 - 2¹ = 121030321319 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121030321301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3966850 + ... + 3997243.

It is an arithmetic number, because the mean of its divisors is an integer number (9365774544).

Almost surely, 2^121030321321 is an apocalyptic number.

It is an amenable number.

121030321321 is a deficient number, since it is larger than the sum of its proper divisors (28822071383).

121030321321 is a wasteful number, since it uses less digits than its factorization.

121030321321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7964280.

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

Adding to 121030321321 its reverse (123123030121), we get a palindrome (244153351442).

The spelling of 121030321321 in words is "one hundred twenty-one billion, thirty million, three hundred twenty-one thousand, three hundred twenty-one".