113561211 has 8 divisors (see below), whose sum is σ = 152418304. Its totient is φ = 75205800.

The previous prime is 113561197. The next prime is 113561213. The reversal of 113561211 is 112165311.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 113561211 - 2¹³ = 113553019 is a prime.

It is a super-2 number, since 2×113561211² = 25792297287573042, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113561213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124891 + ... + 125796.

It is an arithmetic number, because the mean of its divisors is an integer number (19052288).

Almost surely, 2^113561211 is an apocalyptic number.

113561211 is a deficient number, since it is larger than the sum of its proper divisors (38857093).

113561211 is a wasteful number, since it uses less digits than its factorization.

113561211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250841.

The product of its digits is 180, while the sum is 21.

The square root of 113561211 is about 10656.5102636839. The cubic root of 113561211 is about 484.2578524384.

The spelling of 113561211 in words is "one hundred thirteen million, five hundred sixty-one thousand, two hundred eleven".