1200202011137 has 2 divisors, whose sum is σ = 1200202011138. Its totient is φ = 1200202011136.

The previous prime is 1200202011131. The next prime is 1200202011223. The reversal of 1200202011137 is 7311102020021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 710448380161 + 489753630976 = 842881^2 + 699824^2 .

It is a cyclic number.

It is not a de Polignac number, because 1200202011137 - 2⁴ = 1200202011121 is a prime.

It is not a weakly prime, because it can be changed into another prime (1200202011131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600101005568 + 600101005569.

It is an arithmetic number, because the mean of its divisors is an integer number (600101005569).

Almost surely, 2^{1200202011137} is an apocalyptic number.

It is an amenable number.

1200202011137 is a deficient number, since it is larger than the sum of its proper divisors (1).

1200202011137 is an equidigital number, since it uses as much as digits as its factorization.

1200202011137 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 168, while the sum is 20.

Adding to 1200202011137 its reverse (7311102020021), we get a palindrome (8511304031158).

The spelling of 1200202011137 in words is "one trillion, two hundred billion, two hundred two million, eleven thousand, one hundred thirty-seven".