12662347031 has 4 divisors (see below), whose sum is σ = 13407190992. Its totient is φ = 11917503072.

The previous prime is 12662347013. The next prime is 12662347043. The reversal of 12662347031 is 13074326621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13074326621 = 29 ⋅450838849.

It is a cyclic number.

It is not a de Polignac number, because 12662347031 - 2¹⁰ = 12662346007 is a prime.

It is a super-2 number, since 2×12662347031² (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 = 12662346982 and 12662347000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12662347531) 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, 372421955 + ... + 372421988.

It is an arithmetic number, because the mean of its divisors is an integer number (3351797748).

Almost surely, 2^12662347031 is an apocalyptic number.

12662347031 is a deficient number, since it is larger than the sum of its proper divisors (744843961).

12662347031 is an equidigital number, since it uses as much as digits as its factorization.

12662347031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 744843960.

The product of its (nonzero) digits is 36288, while the sum is 35.

The spelling of 12662347031 in words is "twelve billion, six hundred sixty-two million, three hundred forty-seven thousand, thirty-one".