115201031220313 has 4 divisors (see below), whose sum is σ = 116495424829620. Its totient is φ = 113906637611008.

The previous prime is 115201031220283. The next prime is 115201031220323. The reversal of 115201031220313 is 313022130102511.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 49275514201104 + 65925517019209 = 7019652^2 + 8119453^2 .

It is a cyclic number.

It is not a de Polignac number, because 115201031220313 - 2⁴⁵ = 80016659131481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115201031220323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 647196804520 + ... + 647196804697.

It is an arithmetic number, because the mean of its divisors is an integer number (29123856207405).

Almost surely, 2^{115201031220313} is an apocalyptic number.

It is an amenable number.

115201031220313 is a deficient number, since it is larger than the sum of its proper divisors (1294393609307).

115201031220313 is an equidigital number, since it uses as much as digits as its factorization.

115201031220313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1294393609306.

The product of its (nonzero) digits is 1080, while the sum is 25.

Adding to 115201031220313 its reverse (313022130102511), we get a palindrome (428223161322824).

The spelling of 115201031220313 in words is "one hundred fifteen trillion, two hundred one billion, thirty-one million, two hundred twenty thousand, three hundred thirteen".