40043355101 has 4 divisors (see below), whose sum is σ = 40044794112. Its totient is φ = 40041916092.

The previous prime is 40043355073. The next prime is 40043355137. The reversal of 40043355101 is 10155334004.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40043355101 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40043355161) 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 3 ways as a sum of consecutive naturals, for example, 676925 + ... + 733698.

It is an arithmetic number, because the mean of its divisors is an integer number (10011198528).

Almost surely, 2^40043355101 is an apocalyptic number.

It is an amenable number.

40043355101 is a deficient number, since it is larger than the sum of its proper divisors (1439011).

40043355101 is a wasteful number, since it uses less digits than its factorization.

40043355101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1439010.

The product of its (nonzero) digits is 3600, while the sum is 26.

Adding to 40043355101 its reverse (10155334004), we get a palindrome (50198689105).

The spelling of 40043355101 in words is "forty billion, forty-three million, three hundred fifty-five thousand, one hundred one".