121320003001 has 2 divisors, whose sum is σ = 121320003002. Its totient is φ = 121320003000.

The previous prime is 121320002953. The next prime is 121320003029. The reversal of 121320003001 is 100300023121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 111272947776 + 10047055225 = 333576^2 + 100235^2 .

It is an emirp because it is prime and its reverse (100300023121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 121320003001 - 2²⁹ = 120783132089 is a prime.

It is not a weakly prime, because it can be changed into another prime (121320003401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60660001500 + 60660001501.

It is an arithmetic number, because the mean of its divisors is an integer number (60660001501).

Almost surely, 2^121320003001 is an apocalyptic number.

It is an amenable number.

121320003001 is a deficient number, since it is larger than the sum of its proper divisors (1).

121320003001 is an equidigital number, since it uses as much as digits as its factorization.

121320003001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 121320003001 its reverse (100300023121), we get a palindrome (221620026122).

The spelling of 121320003001 in words is "one hundred twenty-one billion, three hundred twenty million, three thousand, one".