13061211838 has 16 divisors (see below), whose sum is σ = 20635038720. Its totient is φ = 6183268056.

The previous prime is 13061211797. The next prime is 13061211853. The reversal of 13061211838 is 83811216031.

It is a happy number.

It is a super-2 number, since 2×13061211838² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34270 + ... + 165217.

It is an arithmetic number, because the mean of its divisors is an integer number (1289689920).

Almost surely, 2^13061211838 is an apocalyptic number.

13061211838 is a deficient number, since it is larger than the sum of its proper divisors (7573826882).

13061211838 is a wasteful number, since it uses less digits than its factorization.

13061211838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201231.

The product of its (nonzero) digits is 6912, while the sum is 34.

Adding to 13061211838 its reverse (83811216031), we get a palindrome (96872427869).

The spelling of 13061211838 in words is "thirteen billion, sixty-one million, two hundred eleven thousand, eight hundred thirty-eight".