113231131131 has 8 divisors (see below), whose sum is σ = 150978478864. Its totient is φ = 75485602080.

The previous prime is 113231131121. The next prime is 113231131147. The reversal of 113231131131 is 131131132311.

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

It is not a de Polignac number, because 113231131131 - 2¹¹ = 113231129083 is a prime.

It is a super-2 number, since 2×113231131131² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 113231131098 and 113231131107.

It is not an unprimeable number, because it can be changed into a prime (113231131121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 302080 + ... + 563661.

It is an arithmetic number, because the mean of its divisors is an integer number (18872309858).

Almost surely, 2^113231131131 is an apocalyptic number.

113231131131 is a deficient number, since it is larger than the sum of its proper divisors (37747347733).

113231131131 is an equidigital number, since it uses as much as digits as its factorization.

113231131131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 909341.

The product of its digits is 162, while the sum is 21.

Adding to 113231131131 its reverse (131131132311), we get a palindrome (244362263442).

The spelling of 113231131131 in words is "one hundred thirteen billion, two hundred thirty-one million, one hundred thirty-one thousand, one hundred thirty-one".