13101112557 has 32 divisors (see below), whose sum is σ = 21244751360. Its totient is φ = 7930042560.

The previous prime is 13101112553. The next prime is 13101112601. The reversal of 13101112557 is 75521110131.

13101112557 is a `hidden beast` number, since 1 + 3 + 101 + 1 + 1 + 2 + 557 = 666.

It is not a de Polignac number, because 13101112557 - 2² = 13101112553 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13101112557.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13101112553) 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, 284533 + ... + 327354.

It is an arithmetic number, because the mean of its divisors is an integer number (663898480).

Almost surely, 2^13101112557 is an apocalyptic number.

It is an amenable number.

13101112557 is a deficient number, since it is larger than the sum of its proper divisors (8143638803).

13101112557 is a wasteful number, since it uses less digits than its factorization.

13101112557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 611970 (or 611964 counting only the distinct ones).

The product of its (nonzero) digits is 1050, while the sum is 27.

Adding to 13101112557 its reverse (75521110131), we get a palindrome (88622222688).

The spelling of 13101112557 in words is "thirteen billion, one hundred one million, one hundred twelve thousand, five hundred fifty-seven".