531442123430 has 32 divisors (see below), whose sum is σ = 970281877248. Its totient is φ = 209536818400.

The previous prime is 531442123391. The next prime is 531442123439. The reversal of 531442123430 is 34321244135.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531442123439) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3250829 + ... + 3410391.

It is an arithmetic number, because the mean of its divisors is an integer number (30321308664).

Almost surely, 2^531442123430 is an apocalyptic number.

531442123430 is a deficient number, since it is larger than the sum of its proper divisors (438839753818).

531442123430 is a wasteful number, since it uses less digits than its factorization.

531442123430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164332.

The product of its (nonzero) digits is 34560, while the sum is 32.

Adding to 531442123430 its reverse (34321244135), we get a palindrome (565763367565).

The spelling of 531442123430 in words is "five hundred thirty-one billion, four hundred forty-two million, one hundred twenty-three thousand, four hundred thirty".