40311213169 has 2 divisors, whose sum is σ = 40311213170. Its totient is φ = 40311213168.

The previous prime is 40311213119. The next prime is 40311213179. The reversal of 40311213169 is 96131211304.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39149766769 + 1161446400 = 197863^2 + 34080^2 .

It is a cyclic number.

It is not a de Polignac number, because 40311213169 - 2³³ = 31721278577 is a prime.

It is a super-2 number, since 2×40311213169² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40311213169.

It is not a weakly prime, because it can be changed into another prime (40311213119) 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 as a sum of consecutive naturals, namely, 20155606584 + 20155606585.

It is an arithmetic number, because the mean of its divisors is an integer number (20155606585).

Almost surely, 2^40311213169 is an apocalyptic number.

It is an amenable number.

40311213169 is a deficient number, since it is larger than the sum of its proper divisors (1).

40311213169 is an equidigital number, since it uses as much as digits as its factorization.

40311213169 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 31.

The spelling of 40311213169 in words is "forty billion, three hundred eleven million, two hundred thirteen thousand, one hundred sixty-nine".