12146064121 has 2 divisors, whose sum is σ = 12146064122. Its totient is φ = 12146064120.

The previous prime is 12146064107. The next prime is 12146064131.

12146064121 is nontrivially palindromic in base 10.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12085924096 + 60140025 = 109936^2 + 7755^2 .

It is a palprime.

It is a cyclic number.

It is not a de Polignac number, because 12146064121 - 2¹¹ = 12146062073 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12146064121.

It is not a weakly prime, because it can be changed into another prime (12146064131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6073032060 + 6073032061.

It is an arithmetic number, because the mean of its divisors is an integer number (6073032061).

Almost surely, 2^12146064121 is an apocalyptic number.

It is an amenable number.

12146064121 is a deficient number, since it is larger than the sum of its proper divisors (1).

12146064121 is an equidigital number, since it uses as much as digits as its factorization.

12146064121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 28.

It can be divided in two parts, 121460 and 64121, that added together give a palindrome (185581).

The spelling of 12146064121 in words is "twelve billion, one hundred forty-six million, sixty-four thousand, one hundred twenty-one".