12734430127 has 4 divisors (see below), whose sum is σ = 12887857080. Its totient is φ = 12581003176.

The previous prime is 12734430109. The next prime is 12734430131. The reversal of 12734430127 is 72103443721.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 72103443721 = 2683 ⋅26874187.

It is a cyclic number.

It is not a de Polignac number, because 12734430127 - 2³¹ = 10586946479 is a prime.

It is a super-2 number, since 2×12734430127² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12734430092 and 12734430101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12734430187) 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, 76713352 + ... + 76713517.

It is an arithmetic number, because the mean of its divisors is an integer number (3221964270).

Almost surely, 2^12734430127 is an apocalyptic number.

12734430127 is a deficient number, since it is larger than the sum of its proper divisors (153426953).

12734430127 is an equidigital number, since it uses as much as digits as its factorization.

12734430127 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153426952.

The product of its (nonzero) digits is 28224, while the sum is 34.

Adding to 12734430127 its reverse (72103443721), we get a palindrome (84837873848).

The spelling of 12734430127 in words is "twelve billion, seven hundred thirty-four million, four hundred thirty thousand, one hundred twenty-seven".