12036366734921 has 2 divisors, whose sum is σ = 12036366734922. Its totient is φ = 12036366734920.

The previous prime is 12036366734869. The next prime is 12036366734941. The reversal of 12036366734921 is 12943766363021.

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., 10938471416896 + 1097895318025 = 3307336^2 + 1047805^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12036366734921 is a prime.

It is not a weakly prime, because it can be changed into another prime (12036366734941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6018183367460 + 6018183367461.

It is an arithmetic number, because the mean of its divisors is an integer number (6018183367461).

Almost surely, 2^{12036366734921} is an apocalyptic number.

It is an amenable number.

12036366734921 is a deficient number, since it is larger than the sum of its proper divisors (1).

12036366734921 is an equidigital number, since it uses as much as digits as its factorization.

12036366734921 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5878656, while the sum is 53.

The spelling of 12036366734921 in words is "twelve trillion, thirty-six billion, three hundred sixty-six million, seven hundred thirty-four thousand, nine hundred twenty-one".