40421212322343 has 16 divisors (see below), whose sum is σ = 55970335622880. Its totient is φ = 25917013262336.

The previous prime is 40421212322339. The next prime is 40421212322363. The reversal of 40421212322343 is 34322321212404.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 40421212322343 - 2² = 40421212322339 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40421212322363) 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, 903891330 + ... + 903936047.

It is an arithmetic number, because the mean of its divisors is an integer number (3498145976430).

Almost surely, 2^{40421212322343} is an apocalyptic number.

40421212322343 is a deficient number, since it is larger than the sum of its proper divisors (15549123300537).

40421212322343 is a wasteful number, since it uses less digits than its factorization.

40421212322343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1807827666.

The product of its (nonzero) digits is 55296, while the sum is 33.

Adding to 40421212322343 its reverse (34322321212404), we get a palindrome (74743533534747).

The spelling of 40421212322343 in words is "forty trillion, four hundred twenty-one billion, two hundred twelve million, three hundred twenty-two thousand, three hundred forty-three".