531434050320 has 160 divisors (see below), whose sum is σ = 1704724283520. Its totient is φ = 136791244800.

The previous prime is 531434050267. The next prime is 531434050327. The reversal of 531434050320 is 23050434135.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (531434050327) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32362752 + ... + 32379168.

It is an arithmetic number, because the mean of its divisors is an integer number (10654526772).

Almost surely, 2^531434050320 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 531434050320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (852362141760).

531434050320 is an abundant number, since it is smaller than the sum of its proper divisors (1173290233200).

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

531434050320 is a wasteful number, since it uses less digits than its factorization.

531434050320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21113 (or 21107 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 30.

Adding to 531434050320 its reverse (23050434135), we get a palindrome (554484484455).

The spelling of 531434050320 in words is "five hundred thirty-one billion, four hundred thirty-four million, fifty thousand, three hundred twenty".