13181247082 has 4 divisors (see below), whose sum is σ = 19771870626. Its totient is φ = 6590623540.

The previous prime is 13181247061. The next prime is 13181247137. The reversal of 13181247082 is 28074218131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 28074218131 = 229 ⋅122594839.

It can be written as a sum of positive squares in only one way, i.e., 9637545241 + 3543701841 = 98171^2 + 59529^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3295311769 + ... + 3295311772.

Almost surely, 2^13181247082 is an apocalyptic number.

13181247082 is a deficient number, since it is larger than the sum of its proper divisors (6590623544).

13181247082 is an equidigital number, since it uses as much as digits as its factorization.

13181247082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6590623543.

The product of its (nonzero) digits is 21504, while the sum is 37.

The spelling of 13181247082 in words is "thirteen billion, one hundred eighty-one million, two hundred forty-seven thousand, eighty-two".