40023311332009 has 2 divisors, whose sum is σ = 40023311332010. Its totient is φ = 40023311332008.

The previous prime is 40023311331989. The next prime is 40023311332021. The reversal of 40023311332009 is 90023311332004.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37213172067600 + 2810139264409 = 6100260^2 + 1676347^2 .

It is a cyclic number.

It is not a de Polignac number, because 40023311332009 - 2¹⁵ = 40023311299241 is a prime.

It is not a weakly prime, because it can be changed into another prime (40023311332079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20011655666004 + 20011655666005.

It is an arithmetic number, because the mean of its divisors is an integer number (20011655666005).

Almost surely, 2^{40023311332009} is an apocalyptic number.

It is an amenable number.

40023311332009 is a deficient number, since it is larger than the sum of its proper divisors (1).

40023311332009 is an equidigital number, since it uses as much as digits as its factorization.

40023311332009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11664, while the sum is 31.

The spelling of 40023311332009 in words is "forty trillion, twenty-three billion, three hundred eleven million, three hundred thirty-two thousand, nine".