131121124 has 12 divisors (see below), whose sum is σ = 229550524. Its totient is φ = 65535264.

The previous prime is 131121121. The next prime is 131121127. The reversal of 131121124 is 421121131.

It is an interprime number because it is at equal distance from previous prime (131121121) and next prime (131121127).

It can be written as a sum of positive squares in 2 ways, for example, as 25401600 + 105719524 = 5040^2 + 10282^2 .

It is a junction number, because it is equal to n+sod(n) for n = 131121098 and 131121107.

It is not an unprimeable number, because it can be changed into a prime (131121121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10042 + ... + 19054.

Almost surely, 2^131121124 is an apocalyptic number.

It is an amenable number.

131121124 is a deficient number, since it is larger than the sum of its proper divisors (98429400).

131121124 is a wasteful number, since it uses less digits than its factorization.

131121124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12654 (or 12652 counting only the distinct ones).

The product of its digits is 48, while the sum is 16.

The square root of 131121124 is about 11450.8132462284. The cubic root of 131121124 is about 508.0317885743.

Adding to 131121124 its reverse (421121131), we get a palindrome (552242255).

The spelling of 131121124 in words is "one hundred thirty-one million, one hundred twenty-one thousand, one hundred twenty-four".