2312040321443 has 4 divisors (see below), whose sum is σ = 2386622267328. Its totient is φ = 2237458375560.

The previous prime is 2312040321439. The next prime is 2312040321463. The reversal of 2312040321443 is 3441230402132.

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 2312040321443 - 2² = 2312040321439 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2312040321463) 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, 37290972896 + ... + 37290972957.

It is an arithmetic number, because the mean of its divisors is an integer number (596655566832).

Almost surely, 2^{2312040321443} is an apocalyptic number.

2312040321443 is a deficient number, since it is larger than the sum of its proper divisors (74581945885).

2312040321443 is an equidigital number, since it uses as much as digits as its factorization.

2312040321443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74581945884.

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 2312040321443 its reverse (3441230402132), we get a palindrome (5753270723575).

The spelling of 2312040321443 in words is "two trillion, three hundred twelve billion, forty million, three hundred twenty-one thousand, four hundred forty-three".