12011102085877 has 2 divisors, whose sum is σ = 12011102085878. Its totient is φ = 12011102085876.

The previous prime is 12011102085799. The next prime is 12011102085893. The reversal of 12011102085877 is 77858020111021.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11245251319236 + 765850766641 = 3353394^2 + 875129^2 .

It is a cyclic number.

It is not a de Polignac number, because 12011102085877 - 2¹¹ = 12011102083829 is a prime.

It is a super-3 number, since 3×12011102085877³ (a number of 40 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12011102025877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6005551042938 + 6005551042939.

It is an arithmetic number, because the mean of its divisors is an integer number (6005551042939).

Almost surely, 2^{12011102085877} is an apocalyptic number.

It is an amenable number.

12011102085877 is a deficient number, since it is larger than the sum of its proper divisors (1).

12011102085877 is an equidigital number, since it uses as much as digits as its factorization.

12011102085877 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 62720, while the sum is 43.

Adding to 12011102085877 its reverse (77858020111021), we get a palindrome (89869122196898).

The spelling of 12011102085877 in words is "twelve trillion, eleven billion, one hundred two million, eighty-five thousand, eight hundred seventy-seven".