61301200273 has 2 divisors, whose sum is σ = 61301200274. Its totient is φ = 61301200272.

The previous prime is 61301200241. The next prime is 61301200283. The reversal of 61301200273 is 37200210316.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38570210449 + 22730989824 = 196393^2 + 150768^2 .

It is a cyclic number.

It is not a de Polignac number, because 61301200273 - 2⁵ = 61301200241 is a prime.

It is not a weakly prime, because it can be changed into another prime (61301200283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30650600136 + 30650600137.

It is an arithmetic number, because the mean of its divisors is an integer number (30650600137).

Almost surely, 2^61301200273 is an apocalyptic number.

It is an amenable number.

61301200273 is a deficient number, since it is larger than the sum of its proper divisors (1).

61301200273 is an equidigital number, since it uses as much as digits as its factorization.

61301200273 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512, while the sum is 25.

Adding to 61301200273 its reverse (37200210316), we get a palindrome (98501410589).

The spelling of 61301200273 in words is "sixty-one billion, three hundred one million, two hundred thousand, two hundred seventy-three".