113303220531 has 8 divisors (see below), whose sum is σ = 154584239040. Its totient is φ = 73778841192.

The previous prime is 113303220509. The next prime is 113303220553. The reversal of 113303220531 is 135022303311.

It is an interprime number because it is at equal distance from previous prime (113303220509) and next prime (113303220553).

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

It is not a de Polignac number, because 113303220531 - 2²¹ = 113301123379 is a prime.

It is a super-2 number, since 2×113303220531² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (113303920531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 439159641 + ... + 439159898.

It is an arithmetic number, because the mean of its divisors is an integer number (19323029880).

Almost surely, 2^113303220531 is an apocalyptic number.

113303220531 is a deficient number, since it is larger than the sum of its proper divisors (41281018509).

113303220531 is an equidigital number, since it uses as much as digits as its factorization.

113303220531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 878319585.

The product of its (nonzero) digits is 1620, while the sum is 24.

Adding to 113303220531 its reverse (135022303311), we get a palindrome (248325523842).

The spelling of 113303220531 in words is "one hundred thirteen billion, three hundred three million, two hundred twenty thousand, five hundred thirty-one".