121013333321 has 2 divisors, whose sum is σ = 121013333322. Its totient is φ = 121013333320.

The previous prime is 121013333299. The next prime is 121013333351. The reversal of 121013333321 is 123333310121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 90848590921 + 30164742400 = 301411^2 + 173680^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121013333321 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (121013333351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60506666660 + 60506666661.

It is an arithmetic number, because the mean of its divisors is an integer number (60506666661).

Almost surely, 2^121013333321 is an apocalyptic number.

It is an amenable number.

121013333321 is a deficient number, since it is larger than the sum of its proper divisors (1).

121013333321 is an equidigital number, since it uses as much as digits as its factorization.

121013333321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 121013333321 its reverse (123333310121), we get a palindrome (244346643442).

The spelling of 121013333321 in words is "one hundred twenty-one billion, thirteen million, three hundred thirty-three thousand, three hundred twenty-one".