40312021333243 has 8 divisors (see below), whose sum is σ = 43976836858176. Its totient is φ = 36647220193800.

The previous prime is 40312021333223. The next prime is 40312021333343. The reversal of 40312021333243 is 34233312021304.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40312021333243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40312021333223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2749828 + ... + 9390718.

It is an arithmetic number, because the mean of its divisors is an integer number (5497104607272).

Almost surely, 2^{40312021333243} is an apocalyptic number.

40312021333243 is a deficient number, since it is larger than the sum of its proper divisors (3664815524933).

40312021333243 is a wasteful number, since it uses less digits than its factorization.

40312021333243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7192745.

The product of its (nonzero) digits is 31104, while the sum is 31.

Adding to 40312021333243 its reverse (34233312021304), we get a palindrome (74545333354547).

The spelling of 40312021333243 in words is "forty trillion, three hundred twelve billion, twenty-one million, three hundred thirty-three thousand, two hundred forty-three".