131122113 has 8 divisors (see below), whose sum is σ = 174998208. Its totient is φ = 87330384.

The previous prime is 131122111. The next prime is 131122129. The reversal of 131122113 is 311221131.

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 131122113 - 2¹ = 131122111 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 131122092 and 131122101.

It is not an unprimeable number, because it can be changed into a prime (131122111) 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 7 ways as a sum of consecutive naturals, for example, 17370 + ... + 23747.

It is an arithmetic number, because the mean of its divisors is an integer number (21874776).

Almost surely, 2^131122113 is an apocalyptic number.

It is an amenable number.

131122113 is a deficient number, since it is larger than the sum of its proper divisors (43876095).

131122113 is a wasteful number, since it uses less digits than its factorization.

131122113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42183.

The product of its digits is 36, while the sum is 15.

The square root of 131122113 is about 11450.8564308527. The cubic root of 131122113 is about 508.0330658722.

Adding to 131122113 its reverse (311221131), we get a palindrome (442343244).

It can be divided in two parts, 13112 and 2113, that added together give a triangular number (15225 = T₁₇₄).

The spelling of 131122113 in words is "one hundred thirty-one million, one hundred twenty-two thousand, one hundred thirteen".