531233534000 has 80 divisors (see below), whose sum is σ = 1383332190240. Its totient is φ = 196147756800.

The previous prime is 531233533993. The next prime is 531233534093. The reversal of 531233534000 is 435332135.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×531233534000² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 10190030 + ... + 10242029.

It is an arithmetic number, because the mean of its divisors is an integer number (17291652378).

Almost surely, 2^531233534000 is an apocalyptic number.

531233534000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

531233534000 is an abundant number, since it is smaller than the sum of its proper divisors (852098656240).

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

531233534000 is a wasteful number, since it uses less digits than its factorization.

531233534000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20432095 (or 20432079 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 29.

Adding to 531233534000 its reverse (435332135), we get a palindrome (531668866135).

The spelling of 531233534000 in words is "five hundred thirty-one billion, two hundred thirty-three million, five hundred thirty-four thousand".