121003320803 has 2 divisors, whose sum is σ = 121003320804. Its totient is φ = 121003320802.

The previous prime is 121003320791. The next prime is 121003320829. The reversal of 121003320803 is 308023300121.

It is a weak prime.

It is an emirp because it is prime and its reverse (308023300121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 121003320803 - 2³⁴ = 103823451619 is a prime.

It is not a weakly prime, because it can be changed into another prime (121003325803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60501660401 + 60501660402.

It is an arithmetic number, because the mean of its divisors is an integer number (60501660402).

Almost surely, 2^121003320803 is an apocalyptic number.

121003320803 is a deficient number, since it is larger than the sum of its proper divisors (1).

121003320803 is an equidigital number, since it uses as much as digits as its factorization.

121003320803 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 121003320803 its reverse (308023300121), we get a palindrome (429026620924).

The spelling of 121003320803 in words is "one hundred twenty-one billion, three million, three hundred twenty thousand, eight hundred three".