11450200121 has 2 divisors, whose sum is σ = 11450200122. Its totient is φ = 11450200120.

The previous prime is 11450200081. The next prime is 11450200141. The reversal of 11450200121 is 12100205411.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9060945721 + 2389254400 = 95189^2 + 48880^2 .

It is a cyclic number.

It is not a de Polignac number, because 11450200121 - 2⁶ = 11450200057 is a prime.

It is a super-2 number, since 2×11450200121² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11450200121.

It is not a weakly prime, because it can be changed into another prime (11450200141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5725100060 + 5725100061.

It is an arithmetic number, because the mean of its divisors is an integer number (5725100061).

Almost surely, 2^11450200121 is an apocalyptic number.

It is an amenable number.

11450200121 is a deficient number, since it is larger than the sum of its proper divisors (1).

11450200121 is an equidigital number, since it uses as much as digits as its factorization.

11450200121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 80, while the sum is 17.

Adding to 11450200121 its reverse (12100205411), we get a palindrome (23550405532).

The spelling of 11450200121 in words is "eleven billion, four hundred fifty million, two hundred thousand, one hundred twenty-one".