40121043043 has 8 divisors (see below), whose sum is σ = 40312036800. Its totient is φ = 39930297000.

The previous prime is 40121043031. The next prime is 40121043091. The reversal of 40121043043 is 34034012104.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40121043043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40121043013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 266908 + ... + 389206.

It is an arithmetic number, because the mean of its divisors is an integer number (5039004600).

Almost surely, 2^40121043043 is an apocalyptic number.

40121043043 is a deficient number, since it is larger than the sum of its proper divisors (190993757).

40121043043 is a wasteful number, since it uses less digits than its factorization.

40121043043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123857.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 40121043043 its reverse (34034012104), we get a palindrome (74155055147).

The spelling of 40121043043 in words is "forty billion, one hundred twenty-one million, forty-three thousand, forty-three".