40323434420143 has 12 divisors (see below), whose sum is σ = 47727822503920. Its totient is φ = 33371118135936.

The previous prime is 40323434420141. The next prime is 40323434420167. The reversal of 40323434420143 is 34102443432304.

It is not a de Polignac number, because 40323434420143 - 2¹ = 40323434420141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40323434420141) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3424780458 + ... + 3424792231.

Almost surely, 2^{40323434420143} is an apocalyptic number.

40323434420143 is a deficient number, since it is larger than the sum of its proper divisors (7404388083777).

40323434420143 is an equidigital number, since it uses as much as digits as its factorization.

40323434420143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6849572754 (or 6849572725 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 37.

Adding to 40323434420143 its reverse (34102443432304), we get a palindrome (74425877852447).

The spelling of 40323434420143 in words is "forty trillion, three hundred twenty-three billion, four hundred thirty-four million, four hundred twenty thousand, one hundred forty-three".