40121142167 has 2 divisors, whose sum is σ = 40121142168. Its totient is φ = 40121142166.

The previous prime is 40121142143. The next prime is 40121142203. The reversal of 40121142167 is 76124112104.

It is a happy number.

40121142167 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40121142167 - 2¹⁴ = 40121125783 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40121142137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20060571083 + 20060571084.

It is an arithmetic number, because the mean of its divisors is an integer number (20060571084).

Almost surely, 2^40121142167 is an apocalyptic number.

40121142167 is a deficient number, since it is larger than the sum of its proper divisors (1).

40121142167 is an equidigital number, since it uses as much as digits as its factorization.

40121142167 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2688, while the sum is 29.

The spelling of 40121142167 in words is "forty billion, one hundred twenty-one million, one hundred forty-two thousand, one hundred sixty-seven".