12702161243 has 4 divisors (see below), whose sum is σ = 12702400440. Its totient is φ = 12701922048.

The previous prime is 12702161239. The next prime is 12702161249. The reversal of 12702161243 is 34216120721.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12702161243 - 2² = 12702161239 is a prime.

It is a super-2 number, since 2×12702161243² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12702161249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 230 + ... + 159387.

It is an arithmetic number, because the mean of its divisors is an integer number (3175600110).

Almost surely, 2^12702161243 is an apocalyptic number.

12702161243 is a deficient number, since it is larger than the sum of its proper divisors (239197).

12702161243 is an equidigital number, since it uses as much as digits as its factorization.

12702161243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239196.

The product of its (nonzero) digits is 4032, while the sum is 29.

Adding to 12702161243 its reverse (34216120721), we get a palindrome (46918281964).

The spelling of 12702161243 in words is "twelve billion, seven hundred two million, one hundred sixty-one thousand, two hundred forty-three".