12697342831 has 4 divisors (see below), whose sum is σ = 12773374992. Its totient is φ = 12621310672.

The previous prime is 12697342829. The next prime is 12697342841. The reversal of 12697342831 is 13824379621.

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 12697342831 - 2¹ = 12697342829 is a prime.

It is a super-2 number, since 2×12697342831² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12697342841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38015830 + ... + 38016163.

It is an arithmetic number, because the mean of its divisors is an integer number (3193343748).

Almost surely, 2^12697342831 is an apocalyptic number.

12697342831 is a deficient number, since it is larger than the sum of its proper divisors (76032161).

12697342831 is an equidigital number, since it uses as much as digits as its factorization.

12697342831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76032160.

The product of its digits is 435456, while the sum is 46.

It can be divided in two parts, 1269 and 7342831, that added together give a square (7344100 = 2710²).

The spelling of 12697342831 in words is "twelve billion, six hundred ninety-seven million, three hundred forty-two thousand, eight hundred thirty-one".