12443302031 has 16 divisors (see below), whose sum is σ = 13490636544. Its totient is φ = 11431373184.

The previous prime is 12443302019. The next prime is 12443302033. The reversal of 12443302031 is 13020334421.

It is not a de Polignac number, because 12443302031 - 2¹⁸ = 12443039887 is a prime.

It is a super-2 number, since 2×12443302031² (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 = 12443301988 and 12443302006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12443302033) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1298600 + ... + 1308146.

It is an arithmetic number, because the mean of its divisors is an integer number (843164784).

Almost surely, 2^12443302031 is an apocalyptic number.

12443302031 is a deficient number, since it is larger than the sum of its proper divisors (1047334513).

12443302031 is a wasteful number, since it uses less digits than its factorization.

12443302031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11390.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 12443302031 its reverse (13020334421), we get a palindrome (25463636452).

The spelling of 12443302031 in words is "twelve billion, four hundred forty-three million, three hundred two thousand, thirty-one".