40121431343 has 8 divisors (see below), whose sum is σ = 45948794880. Its totient is φ = 34318000440.

The previous prime is 40121431321. The next prime is 40121431387. The reversal of 40121431343 is 34313412104.

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 not a de Polignac number, because 40121431343 - 2¹⁰ = 40121430319 is a prime.

It is a super-2 number, since 2×40121431343² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40121431303) 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, 5979563 + ... + 5986268.

It is an arithmetic number, because the mean of its divisors is an integer number (5743599360).

Almost surely, 2^40121431343 is an apocalyptic number.

40121431343 is a deficient number, since it is larger than the sum of its proper divisors (5827363537).

40121431343 is a wasteful number, since it uses less digits than its factorization.

40121431343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11966317.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 40121431343 its reverse (34313412104), we get a palindrome (74434843447).

The spelling of 40121431343 in words is "forty billion, one hundred twenty-one million, four hundred thirty-one thousand, three hundred forty-three".