531321334000 has 40 divisors (see below), whose sum is σ = 1284734990448. Its totient is φ = 212528532800.

The previous prime is 531321333997. The next prime is 531321334039. The reversal of 531321334000 is 433123135.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 132828334 + ... + 132832333.

Almost surely, 2^531321334000 is an apocalyptic number.

531321334000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

531321334000 is an abundant number, since it is smaller than the sum of its proper divisors (753413656448).

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

531321334000 is a wasteful number, since it uses less digits than its factorization.

531321334000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265660690 (or 265660674 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 25.

Adding to 531321334000 its reverse (433123135), we get a palindrome (531754457135).

The spelling of 531321334000 in words is "five hundred thirty-one billion, three hundred twenty-one million, three hundred thirty-four thousand".