200121210201113 has 2 divisors, whose sum is σ = 200121210201114. Its totient is φ = 200121210201112.

The previous prime is 200121210201089. The next prime is 200121210201139. The reversal of 200121210201113 is 311102012121002.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 195129971645449 + 4991238555664 = 13968893^2 + 2234108^2 .

It is a cyclic number.

It is not a de Polignac number, because 200121210201113 - 2²⁰ = 200121209152537 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 200121210201091 and 200121210201100.

It is not a weakly prime, because it can be changed into another prime (200121210201013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100060605100556 + 100060605100557.

It is an arithmetic number, because the mean of its divisors is an integer number (100060605100557).

Almost surely, 2^{200121210201113} is an apocalyptic number.

It is an amenable number.

200121210201113 is a deficient number, since it is larger than the sum of its proper divisors (1).

200121210201113 is an equidigital number, since it uses as much as digits as its factorization.

200121210201113 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 200121210201113 its reverse (311102012121002), we get a palindrome (511223222322115).

The spelling of 200121210201113 in words is "two hundred trillion, one hundred twenty-one billion, two hundred ten million, two hundred one thousand, one hundred thirteen".