13140203857 has 12 divisors (see below), whose sum is σ = 14692944528. Its totient is φ = 11654266400.

The previous prime is 13140203809. The next prime is 13140203927. The reversal of 13140203857 is 75830204131.

It is not a de Polignac number, because 13140203857 - 2¹⁵ = 13140171089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13140203357) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 336823 + ... + 373804.

It is an arithmetic number, because the mean of its divisors is an integer number (1224412044).

Almost surely, 2^13140203857 is an apocalyptic number.

It is an amenable number.

13140203857 is a deficient number, since it is larger than the sum of its proper divisors (1552740671).

13140203857 is an equidigital number, since it uses as much as digits as its factorization.

13140203857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 710720 (or 710679 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 34.

Adding to 13140203857 its reverse (75830204131), we get a palindrome (88970407988).

The spelling of 13140203857 in words is "thirteen billion, one hundred forty million, two hundred three thousand, eight hundred fifty-seven".