12015425043091 has 2 divisors, whose sum is σ = 12015425043092. Its totient is φ = 12015425043090.

The previous prime is 12015425043071. The next prime is 12015425043163. The reversal of 12015425043091 is 19034052451021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12015425043091 - 2⁵ = 12015425043059 is a prime.

It is a super-2 number, since 2×12015425043091² (a number of 27 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 12015425043091.

It is not a weakly prime, because it can be changed into another prime (12015425043071) 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, 6007712521545 + 6007712521546.

It is an arithmetic number, because the mean of its divisors is an integer number (6007712521546).

Almost surely, 2^{12015425043091} is an apocalyptic number.

12015425043091 is a deficient number, since it is larger than the sum of its proper divisors (1).

12015425043091 is an equidigital number, since it uses as much as digits as its factorization.

12015425043091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 43200, while the sum is 37.

The spelling of 12015425043091 in words is "twelve trillion, fifteen billion, four hundred twenty-five million, forty-three thousand, ninety-one".