13591197123 has 16 divisors (see below), whose sum is σ = 20719347456. Its totient is φ = 7763041440.

The previous prime is 13591197121. The next prime is 13591197131. The reversal of 13591197123 is 32179119531.

It is a happy number.

It is not a de Polignac number, because 13591197123 - 2¹ = 13591197121 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13591197121) 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, 89713 + ... + 187698.

It is an arithmetic number, because the mean of its divisors is an integer number (1294959216).

Almost surely, 2^13591197123 is an apocalyptic number.

13591197123 is a deficient number, since it is larger than the sum of its proper divisors (7128150333).

13591197123 is a wasteful number, since it uses less digits than its factorization.

13591197123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279754.

The product of its digits is 51030, while the sum is 42.

The spelling of 13591197123 in words is "thirteen billion, five hundred ninety-one million, one hundred ninety-seven thousand, one hundred twenty-three".