40100034243 has 4 divisors (see below), whose sum is σ = 53466712328. Its totient is φ = 26733356160.

The previous prime is 40100034217. The next prime is 40100034251. The reversal of 40100034243 is 34243000104.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 40100034243 - 2⁵ = 40100034211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40100034203) 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, 6683339038 + ... + 6683339043.

It is an arithmetic number, because the mean of its divisors is an integer number (13366678082).

Almost surely, 2^40100034243 is an apocalyptic number.

40100034243 is a deficient number, since it is larger than the sum of its proper divisors (13366678085).

40100034243 is a wasteful number, since it uses less digits than its factorization.

40100034243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13366678084.

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 40100034243 its reverse (34243000104), we get a palindrome (74343034347).

The spelling of 40100034243 in words is "forty billion, one hundred million, thirty-four thousand, two hundred forty-three".