12000148510781 has 2 divisors, whose sum is σ = 12000148510782. Its totient is φ = 12000148510780.

The previous prime is 12000148510771. The next prime is 12000148510837. The reversal of 12000148510781 is 18701584100021.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10374100183225 + 1626048327556 = 3220885^2 + 1275166^2 .

It is an emirp because it is prime and its reverse (18701584100021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12000148510781 - 2¹⁸ = 12000148248637 is a prime.

It is a super-2 number, since 2×12000148510781² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12000148510771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6000074255390 + 6000074255391.

It is an arithmetic number, because the mean of its divisors is an integer number (6000074255391).

Almost surely, 2^{12000148510781} is an apocalyptic number.

It is an amenable number.

12000148510781 is a deficient number, since it is larger than the sum of its proper divisors (1).

12000148510781 is an equidigital number, since it uses as much as digits as its factorization.

12000148510781 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17920, while the sum is 38.

The spelling of 12000148510781 in words is "twelve trillion, one hundred forty-eight million, five hundred ten thousand, seven hundred eighty-one".