121322001013 has 2 divisors, whose sum is σ = 121322001014. Its totient is φ = 121322001012.

The previous prime is 121322000999. The next prime is 121322001019. The reversal of 121322001013 is 310100223121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 72911880484 + 48410120529 = 270022^2 + 220023^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121322001013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121322001019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60661000506 + 60661000507.

It is an arithmetic number, because the mean of its divisors is an integer number (60661000507).

Almost surely, 2^121322001013 is an apocalyptic number.

It is an amenable number.

121322001013 is a deficient number, since it is larger than the sum of its proper divisors (1).

121322001013 is an equidigital number, since it uses as much as digits as its factorization.

121322001013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 121322001013 its reverse (310100223121), we get a palindrome (431422224134).

The spelling of 121322001013 in words is "one hundred twenty-one billion, three hundred twenty-two million, one thousand, thirteen".