531401201324 has 36 divisors (see below), whose sum is σ = 1119083822640. Its totient is φ = 219890149920.

The previous prime is 531401201323. The next prime is 531401201327. The reversal of 531401201324 is 423102104135.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 531401201293 and 531401201302.

It is not an unprimeable number, because it can be changed into a prime (531401201323) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 46739672 + ... + 46751039.

It is an arithmetic number, because the mean of its divisors is an integer number (31085661740).

Almost surely, 2^531401201324 is an apocalyptic number.

It is an amenable number.

531401201324 is an abundant number, since it is smaller than the sum of its proper divisors (587682621316).

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

531401201324 is a wasteful number, since it uses less digits than its factorization.

531401201324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93490758 (or 93490749 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

Adding to 531401201324 its reverse (423102104135), we get a palindrome (954503305459).

The spelling of 531401201324 in words is "five hundred thirty-one billion, four hundred one million, two hundred one thousand, three hundred twenty-four".