12312210043 has 32 divisors (see below), whose sum is σ = 14906165760. Its totient is φ = 9947266560.

The previous prime is 12312210041. The next prime is 12312210059. The reversal of 12312210043 is 34001221321.

It is a happy number.

It is not a de Polignac number, because 12312210043 - 2¹ = 12312210041 is a prime.

It is a super-2 number, since 2×12312210043² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12312210043.

It is not an unprimeable number, because it can be changed into a prime (12312210041) 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 in 31 ways as a sum of consecutive naturals, for example, 1532908 + ... + 1540918.

It is an arithmetic number, because the mean of its divisors is an integer number (465817680).

Almost surely, 2^12312210043 is an apocalyptic number.

12312210043 is a deficient number, since it is larger than the sum of its proper divisors (2593955717).

12312210043 is a wasteful number, since it uses less digits than its factorization.

12312210043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8227.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 12312210043 its reverse (34001221321), we get a palindrome (46313431364).

The spelling of 12312210043 in words is "twelve billion, three hundred twelve million, two hundred ten thousand, forty-three".