40112021087 has 2 divisors, whose sum is σ = 40112021088. Its totient is φ = 40112021086.

The previous prime is 40112021083. The next prime is 40112021113. The reversal of 40112021087 is 78012021104.

It is an a-pointer prime, because the next prime (40112021113) can be obtained adding 40112021087 to its sum of digits (26).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40112021087 - 2² = 40112021083 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40112021083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20056010543 + 20056010544.

It is an arithmetic number, because the mean of its divisors is an integer number (20056010544).

Almost surely, 2^40112021087 is an apocalyptic number.

40112021087 is a deficient number, since it is larger than the sum of its proper divisors (1).

40112021087 is an equidigital number, since it uses as much as digits as its factorization.

40112021087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 896, while the sum is 26.

The spelling of 40112021087 in words is "forty billion, one hundred twelve million, twenty-one thousand, eighty-seven".