121200200053 has 2 divisors, whose sum is σ = 121200200054. Its totient is φ = 121200200052.

The previous prime is 121200199979. The next prime is 121200200057. The reversal of 121200200053 is 350002002121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 69547183524 + 51653016529 = 263718^2 + 227273^2 .

It is an emirp because it is prime and its reverse (350002002121) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121200200053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121200200057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60600100026 + 60600100027.

It is an arithmetic number, because the mean of its divisors is an integer number (60600100027).

Almost surely, 2^121200200053 is an apocalyptic number.

It is an amenable number.

121200200053 is a deficient number, since it is larger than the sum of its proper divisors (1).

121200200053 is an equidigital number, since it uses as much as digits as its factorization.

121200200053 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120, while the sum is 16.

Adding to 121200200053 its reverse (350002002121), we get a palindrome (471202202174).

The spelling of 121200200053 in words is "one hundred twenty-one billion, two hundred million, two hundred thousand, fifty-three".