40311213049 has 2 divisors, whose sum is σ = 40311213050. Its totient is φ = 40311213048.

The previous prime is 40311213017. The next prime is 40311213071. The reversal of 40311213049 is 94031211304.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40303373049 + 7840000 = 200757^2 + 2800^2 .

It is a cyclic number.

It is not a de Polignac number, because 40311213049 - 2⁵ = 40311213017 is a prime.

It is not a weakly prime, because it can be changed into another prime (40311211049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20155606524 + 20155606525.

It is an arithmetic number, because the mean of its divisors is an integer number (20155606525).

Almost surely, 2^40311213049 is an apocalyptic number.

It is an amenable number.

40311213049 is a deficient number, since it is larger than the sum of its proper divisors (1).

40311213049 is an equidigital number, since it uses as much as digits as its factorization.

40311213049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 28.

The spelling of 40311213049 in words is "forty billion, three hundred eleven million, two hundred thirteen thousand, forty-nine".