115720516273 has 2 divisors, whose sum is σ = 115720516274. Its totient is φ = 115720516272.

The previous prime is 115720516243. The next prime is 115720516319. The reversal of 115720516273 is 372615027511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 60075480609 + 55645035664 = 245103^2 + 235892^2 .

It is an emirp because it is prime and its reverse (372615027511) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 115720516273 - 2⁹ = 115720515761 is a prime.

It is not a weakly prime, because it can be changed into another prime (115720516243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57860258136 + 57860258137.

It is an arithmetic number, because the mean of its divisors is an integer number (57860258137).

Almost surely, 2^115720516273 is an apocalyptic number.

It is an amenable number.

115720516273 is a deficient number, since it is larger than the sum of its proper divisors (1).

115720516273 is an equidigital number, since it uses as much as digits as its factorization.

115720516273 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 88200, while the sum is 40.

The spelling of 115720516273 in words is "one hundred fifteen billion, seven hundred twenty million, five hundred sixteen thousand, two hundred seventy-three".