113312220401 has 4 divisors (see below), whose sum is σ = 113317455012. Its totient is φ = 113306985792.

The previous prime is 113312220397. The next prime is 113312220407. The reversal of 113312220401 is 104022213311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 104022213311 = 33013 ⋅3150947.

It can be written as a sum of positive squares in 2 ways, for example, as 68790798400 + 44521422001 = 262280^2 + 211001^2 .

It is a cyclic number.

It is not a de Polignac number, because 113312220401 - 2² = 113312220397 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113312220407) 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, 2584700 + ... + 2628173.

It is an arithmetic number, because the mean of its divisors is an integer number (28329363753).

Almost surely, 2^113312220401 is an apocalyptic number.

It is an amenable number.

113312220401 is a deficient number, since it is larger than the sum of its proper divisors (5234611).

113312220401 is an equidigital number, since it uses as much as digits as its factorization.

113312220401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5234610.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 113312220401 its reverse (104022213311), we get a palindrome (217334433712).

The spelling of 113312220401 in words is "one hundred thirteen billion, three hundred twelve million, two hundred twenty thousand, four hundred one".