365220113081 has 2 divisors, whose sum is σ = 365220113082. Its totient is φ = 365220113080.

The previous prime is 365220113057. The next prime is 365220113113. The reversal of 365220113081 is 180311022563.

It is an a-pointer prime, because the next prime (365220113113) can be obtained adding 365220113081 to its sum of digits (32).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 194803063225 + 170417049856 = 441365^2 + 412816^2 .

It is a cyclic number.

It is not a de Polignac number, because 365220113081 - 2¹⁸ = 365219850937 is a prime.

It is a super-2 number, since 2×365220113081² (a number of 24 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (365226113081) 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, 182610056540 + 182610056541.

It is an arithmetic number, because the mean of its divisors is an integer number (182610056541).

Almost surely, 2^365220113081 is an apocalyptic number.

It is an amenable number.

365220113081 is a deficient number, since it is larger than the sum of its proper divisors (1).

365220113081 is an equidigital number, since it uses as much as digits as its factorization.

365220113081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 32.

The spelling of 365220113081 in words is "three hundred sixty-five billion, two hundred twenty million, one hundred thirteen thousand, eighty-one".