40340121143 has 16 divisors (see below), whose sum is σ = 46708142400. Its totient is φ = 34126308096.

The previous prime is 40340121137. The next prime is 40340121167. The reversal of 40340121143 is 34112104304.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40340121143 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 (40340126143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44333 + ... + 287481.

It is an arithmetic number, because the mean of its divisors is an integer number (2919258900).

Almost surely, 2^40340121143 is an apocalyptic number.

40340121143 is a deficient number, since it is larger than the sum of its proper divisors (6368021257).

40340121143 is a wasteful number, since it uses less digits than its factorization.

40340121143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243466.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 40340121143 its reverse (34112104304), we get a palindrome (74452225447).

The spelling of 40340121143 in words is "forty billion, three hundred forty million, one hundred twenty-one thousand, one hundred forty-three".