13196230731 has 12 divisors (see below), whose sum is σ = 19718506080. Its totient is φ = 8494125360.

The previous prime is 13196230709. The next prime is 13196230757. The reversal of 13196230731 is 13703269131.

13196230731 is a `hidden beast` number, since 1 + 319 + 6 + 2 + 307 + 31 = 666.

It is not a de Polignac number, because 13196230731 - 2¹⁴ = 13196214347 is a prime.

It is a super-2 number, since 2×13196230731² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13196237731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25279875 + ... + 25280396.

It is an arithmetic number, because the mean of its divisors is an integer number (1643208840).

Almost surely, 2^13196230731 is an apocalyptic number.

13196230731 is a deficient number, since it is larger than the sum of its proper divisors (6522275349).

13196230731 is a wasteful number, since it uses less digits than its factorization.

13196230731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50560306 (or 50560303 counting only the distinct ones).

The product of its (nonzero) digits is 20412, while the sum is 36.

Adding to 13196230731 its reverse (13703269131), we get a palindrome (26899499862).

The spelling of 13196230731 in words is "thirteen billion, one hundred ninety-six million, two hundred thirty thousand, seven hundred thirty-one".