13071322257 has 32 divisors (see below), whose sum is σ = 21068986368. Its totient is φ = 7046683776.

The previous prime is 13071322249. The next prime is 13071322259. The reversal of 13071322257 is 75222317031.

It is not a de Polignac number, because 13071322257 - 2³ = 13071322249 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13071322259) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 150103 + ... + 220620.

It is an arithmetic number, because the mean of its divisors is an integer number (658405824).

Almost surely, 2^13071322257 is an apocalyptic number.

It is an amenable number.

13071322257 is a deficient number, since it is larger than the sum of its proper divisors (7997664111).

13071322257 is a wasteful number, since it uses less digits than its factorization.

13071322257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370829.

The product of its (nonzero) digits is 17640, while the sum is 33.

Adding to 13071322257 its reverse (75222317031), we get a palindrome (88293639288).

The spelling of 13071322257 in words is "thirteen billion, seventy-one million, three hundred twenty-two thousand, two hundred fifty-seven".