13128311201 has 2 divisors, whose sum is σ = 13128311202. Its totient is φ = 13128311200.

The previous prime is 13128311159. The next prime is 13128311219. The reversal of 13128311201 is 10211382131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8963544976 + 4164766225 = 94676^2 + 64535^2 .

It is a cyclic number.

It is not a de Polignac number, because 13128311201 - 2¹⁸ = 13128049057 is a prime.

It is not a weakly prime, because it can be changed into another prime (13128311401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6564155600 + 6564155601.

It is an arithmetic number, because the mean of its divisors is an integer number (6564155601).

Almost surely, 2^13128311201 is an apocalyptic number.

It is an amenable number.

13128311201 is a deficient number, since it is larger than the sum of its proper divisors (1).

13128311201 is an equidigital number, since it uses as much as digits as its factorization.

13128311201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 23.

Adding to 13128311201 its reverse (10211382131), we get a palindrome (23339693332).

The spelling of 13128311201 in words is "thirteen billion, one hundred twenty-eight million, three hundred eleven thousand, two hundred one".