531400523112 has 128 divisors (see below), whose sum is σ = 1479951648000. Its totient is φ = 176673530880.

The previous prime is 531400523111. The next prime is 531400523141. The reversal of 531400523112 is 211325004135.

531400523112 is a `hidden beast` number, since 531 + 40 + 0 + 52 + 31 + 12 = 666.

531400523112 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (531400523111) 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, 166529437 + ... + 166532627.

It is an arithmetic number, because the mean of its divisors is an integer number (11562122250).

Almost surely, 2^531400523112 is an apocalyptic number.

It is an amenable number.

531400523112 is an abundant number, since it is smaller than the sum of its proper divisors (948551124888).

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

531400523112 is a wasteful number, since it uses less digits than its factorization.

531400523112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4968 (or 4958 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

Adding to 531400523112 its reverse (211325004135), we get a palindrome (742725527247).

The spelling of 531400523112 in words is "five hundred thirty-one billion, four hundred million, five hundred twenty-three thousand, one hundred twelve".