113346015561 has 9 divisors (see below), whose sum is σ = 163723481389. Its totient is φ = 75563337036.

The previous prime is 113346015553. The next prime is 113346015569. The reversal of 113346015561 is 165510643311.

The square root of 113346015561 is 336669.

It is a perfect power (a square), and thus also a powerful number.

113346015561 is a `hidden beast` number, since 1 + 1 + 3 + 34 + 60 + 1 + 5 + 561 = 666.

It is an interprime number because it is at equal distance from previous prime (113346015553) and next prime (113346015569).

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 113346015561 - 2³ = 113346015553 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (113346015569) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 953896 + ... + 1066118.

Almost surely, 2^113346015561 is an apocalyptic number.

113346015561 is the 336669-th square number.

113346015561 is the 168335-th centered octagonal number.

It is an amenable number.

113346015561 is a deficient number, since it is larger than the sum of its proper divisors (50377465828).

113346015561 is an frugal number, since it uses more digits than its factorization.

113346015561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224452 (or 112226 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

Multiplying 113346015561 by its sum of digits (36), we get a square (4080456560196 = 2020014²).

Adding to 113346015561 its reverse (165510643311), we get a palindrome (278856658872).

The spelling of 113346015561 in words is "one hundred thirteen billion, three hundred forty-six million, fifteen thousand, five hundred sixty-one".