40340121137 has 2 divisors, whose sum is σ = 40340121138. Its totient is φ = 40340121136.

The previous prime is 40340121119. The next prime is 40340121167. The reversal of 40340121137 is 73112104304.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22552830976 + 17787290161 = 150176^2 + 133369^2 .

It is a cyclic number.

It is not a de Polignac number, because 40340121137 - 2¹⁰ = 40340120113 is a prime.

It is not a weakly prime, because it can be changed into another prime (40340121167) 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, 20170060568 + 20170060569.

It is an arithmetic number, because the mean of its divisors is an integer number (20170060569).

Almost surely, 2^40340121137 is an apocalyptic number.

It is an amenable number.

40340121137 is a deficient number, since it is larger than the sum of its proper divisors (1).

40340121137 is an equidigital number, since it uses as much as digits as its factorization.

40340121137 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 26.

The spelling of 40340121137 in words is "forty billion, three hundred forty million, one hundred twenty-one thousand, one hundred thirty-seven".