13201126132557 has 16 divisors (see below), whose sum is σ = 19205883560448. Its totient is φ = 7998913525680.

The previous prime is 13201126132553. The next prime is 13201126132673. The reversal of 13201126132557 is 75523162110231.

It is not a de Polignac number, because 13201126132557 - 2² = 13201126132553 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13201126132553) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44072953 + ... + 44371470.

It is an arithmetic number, because the mean of its divisors is an integer number (1200367722528).

Almost surely, 2^{13201126132557} is an apocalyptic number.

It is an amenable number.

13201126132557 is a deficient number, since it is larger than the sum of its proper divisors (6004757427891).

13201126132557 is a wasteful number, since it uses less digits than its factorization.

13201126132557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88448960.

The product of its (nonzero) digits is 75600, while the sum is 39.

Adding to 13201126132557 its reverse (75523162110231), we get a palindrome (88724288242788).

The spelling of 13201126132557 in words is "thirteen trillion, two hundred one billion, one hundred twenty-six million, one hundred thirty-two thousand, five hundred fifty-seven".