40421340343143 has 12 divisors (see below), whose sum is σ = 58388486159640. Its totient is φ = 26946588383856.

The previous prime is 40421340343117. The next prime is 40421340343147. The reversal of 40421340343143 is 34134304312404.

40421340343143 is a `hidden beast` number, since 4 + 0 + 4 + 213 + 4 + 0 + 3 + 431 + 4 + 3 = 666.

It is not a de Polignac number, because 40421340343143 - 2²⁵ = 40421306788711 is a prime.

It is a super-3 number, since 3×40421340343143³ (a number of 42 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40421340343098 and 40421340343107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40421340343147) 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, 80723613 + ... + 81222806.

It is an arithmetic number, because the mean of its divisors is an integer number (4865707179970).

Almost surely, 2^{40421340343143} is an apocalyptic number.

40421340343143 is a deficient number, since it is larger than the sum of its proper divisors (17967145816497).

40421340343143 is a wasteful number, since it uses less digits than its factorization.

40421340343143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161974158 (or 161974155 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 36.

Adding to 40421340343143 its reverse (34134304312404), we get a palindrome (74555644655547).

The spelling of 40421340343143 in words is "forty trillion, four hundred twenty-one billion, three hundred forty million, three hundred forty-three thousand, one hundred forty-three".