40113433391 has 2 divisors, whose sum is σ = 40113433392. Its totient is φ = 40113433390.

The previous prime is 40113433369. The next prime is 40113433433. The reversal of 40113433391 is 19333431104.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40113433391 - 2¹⁰ = 40113432367 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40113433301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20056716695 + 20056716696.

It is an arithmetic number, because the mean of its divisors is an integer number (20056716696).

Almost surely, 2^40113433391 is an apocalyptic number.

40113433391 is a deficient number, since it is larger than the sum of its proper divisors (1).

40113433391 is an equidigital number, since it uses as much as digits as its factorization.

40113433391 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11664, while the sum is 32.

Adding to 40113433391 its reverse (19333431104), we get a palindrome (59446864495).

The spelling of 40113433391 in words is "forty billion, one hundred thirteen million, four hundred thirty-three thousand, three hundred ninety-one".