113211143 has 8 divisors (see below), whose sum is σ = 120022560. Its totient is φ = 106416640.

The previous prime is 113211121. The next prime is 113211149. The reversal of 113211143 is 341112311.

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

It is a cyclic number.

It is not a de Polignac number, because 113211143 - 2¹² = 113207047 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113211149) 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, 11198 + ... + 18756.

It is an arithmetic number, because the mean of its divisors is an integer number (15002820).

Almost surely, 2^113211143 is an apocalyptic number.

113211143 is a deficient number, since it is larger than the sum of its proper divisors (6811417).

113211143 is an equidigital number, since it uses as much as digits as its factorization.

113211143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8457.

The product of its digits is 72, while the sum is 17.

The square root of 113211143 is about 10640.0725091514. The cubic root of 113211143 is about 483.7597431863.

Adding to 113211143 its reverse (341112311), we get a palindrome (454323454).

The spelling of 113211143 in words is "one hundred thirteen million, two hundred eleven thousand, one hundred forty-three".