12031031294 has 4 divisors (see below), whose sum is σ = 18046546944. Its totient is φ = 6015515646.

The previous prime is 12031031293. The next prime is 12031031317. The reversal of 12031031294 is 49213013021.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12031031293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3007757822 + ... + 3007757825.

It is an arithmetic number, because the mean of its divisors is an integer number (4511636736).

Almost surely, 2^12031031294 is an apocalyptic number.

12031031294 is a deficient number, since it is larger than the sum of its proper divisors (6015515650).

12031031294 is an equidigital number, since it uses as much as digits as its factorization.

12031031294 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6015515649.

The product of its (nonzero) digits is 1296, while the sum is 26.

The spelling of 12031031294 in words is "twelve billion, thirty-one million, thirty-one thousand, two hundred ninety-four".