13120442501 has 2 divisors, whose sum is σ = 13120442502. Its totient is φ = 13120442500.

The previous prime is 13120442473. The next prime is 13120442519. The reversal of 13120442501 is 10524402131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9129993601 + 3990448900 = 95551^2 + 63170^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13120442501 is a prime.

It is a super-2 number, since 2×13120442501² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13120462501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6560221250 + 6560221251.

It is an arithmetic number, because the mean of its divisors is an integer number (6560221251).

Almost surely, 2^13120442501 is an apocalyptic number.

It is an amenable number.

13120442501 is a deficient number, since it is larger than the sum of its proper divisors (1).

13120442501 is an equidigital number, since it uses as much as digits as its factorization.

13120442501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 960, while the sum is 23.

Adding to 13120442501 its reverse (10524402131), we get a palindrome (23644844632).

The spelling of 13120442501 in words is "thirteen billion, one hundred twenty million, four hundred forty-two thousand, five hundred one".