531440033124 has 96 divisors (see below), whose sum is σ = 1664931050496. Its totient is φ = 127418186880.

The previous prime is 531440033101. The next prime is 531440033129. The reversal of 531440033124 is 421330044135.

It is a junction number, because it is equal to n+sod(n) for n = 531440033091 and 531440033100.

It is not an unprimeable number, because it can be changed into a prime (531440033129) 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 31 ways as a sum of consecutive naturals, for example, 22109202 + ... + 22133225.

It is an arithmetic number, because the mean of its divisors is an integer number (17343031776).

Almost surely, 2^531440033124 is an apocalyptic number.

It is an amenable number.

531440033124 is an abundant number, since it is smaller than the sum of its proper divisors (1133491017372).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

531440033124 is a wasteful number, since it uses less digits than its factorization.

531440033124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44242465 (or 44242463 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 30.

Adding to 531440033124 its reverse (421330044135), we get a palindrome (952770077259).

The spelling of 531440033124 in words is "five hundred thirty-one billion, four hundred forty million, thirty-three thousand, one hundred twenty-four".