12046281161 has 2 divisors, whose sum is σ = 12046281162. Its totient is φ = 12046281160.

The previous prime is 12046281047. The next prime is 12046281173. The reversal of 12046281161 is 16118264021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10168705600 + 1877575561 = 100840^2 + 43331^2 .

It is a cyclic number.

It is not a de Polignac number, because 12046281161 - 2¹⁴ = 12046264777 is a prime.

It is a super-2 number, since 2×12046281161² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12046281461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6023140580 + 6023140581.

It is an arithmetic number, because the mean of its divisors is an integer number (6023140581).

Almost surely, 2^12046281161 is an apocalyptic number.

It is an amenable number.

12046281161 is a deficient number, since it is larger than the sum of its proper divisors (1).

12046281161 is an equidigital number, since it uses as much as digits as its factorization.

12046281161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4608, while the sum is 32.

The spelling of 12046281161 in words is "twelve billion, forty-six million, two hundred eighty-one thousand, one hundred sixty-one".