531121124 has 6 divisors (see below), whose sum is σ = 929461974. Its totient is φ = 265560560.

The previous prime is 531121111. The next prime is 531121133. The reversal of 531121124 is 421121135.

It can be written as a sum of positive squares in only one way, i.e., 505800100 + 25321024 = 22490^2 + 5032^2 .

It is a junction number, because it is equal to n+sod(n) for n = 531121096 and 531121105.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66390137 + ... + 66390144.

It is an arithmetic number, because the mean of its divisors is an integer number (154910329).

Almost surely, 2^531121124 is an apocalyptic number.

It is an amenable number.

531121124 is a deficient number, since it is larger than the sum of its proper divisors (398340850).

531121124 is a wasteful number, since it uses less digits than its factorization.

531121124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132780285 (or 132780283 counting only the distinct ones).

The product of its digits is 240, while the sum is 20.

The square root of 531121124 is about 23046.0652606904. The cubic root of 531121124 is about 809.8374535388.

Adding to 531121124 its reverse (421121135), we get a palindrome (952242259).

The spelling of 531121124 in words is "five hundred thirty-one million, one hundred twenty-one thousand, one hundred twenty-four".