113520143 has 6 divisors (see below), whose sum is σ = 124778472. Its totient is φ = 103200020.

The previous prime is 113520137. The next prime is 113520149. The reversal of 113520143 is 341025311.

It is an interprime number because it is at equal distance from previous prime (113520137) and next prime (113520149).

It is not a de Polignac number, because 113520143 - 2¹² = 113516047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113520149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 468971 + ... + 469212.

It is an arithmetic number, because the mean of its divisors is an integer number (20796412).

Almost surely, 2^113520143 is an apocalyptic number.

113520143 is a deficient number, since it is larger than the sum of its proper divisors (11258329).

113520143 is an equidigital number, since it uses as much as digits as its factorization.

113520143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 938205 (or 938194 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 113520143 is about 10654.5831922230. The cubic root of 113520143 is about 484.1994701230.

Adding to 113520143 its reverse (341025311), we get a palindrome (454545454).

The spelling of 113520143 in words is "one hundred thirteen million, five hundred twenty thousand, one hundred forty-three".