13201264538 has 24 divisors (see below), whose sum is σ = 25128939744. Its totient is φ = 5143349400.

The previous prime is 13201264537. The next prime is 13201264547. The reversal of 13201264538 is 83546210231.

It is a junction number, because it is equal to n+sod(n) for n = 13201264498 and 13201264507.

It is not an unprimeable number, because it can be changed into a prime (13201264537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6121958 + ... + 6124113.

It is an arithmetic number, because the mean of its divisors is an integer number (1047039156).

Almost surely, 2^13201264538 is an apocalyptic number.

13201264538 is a deficient number, since it is larger than the sum of its proper divisors (11927675206).

13201264538 is a wasteful number, since it uses less digits than its factorization.

13201264538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12246098 (or 12246091 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 35.

Adding to 13201264538 its reverse (83546210231), we get a palindrome (96747474769).

The spelling of 13201264538 in words is "thirteen billion, two hundred one million, two hundred sixty-four thousand, five hundred thirty-eight".