531323012212 has 24 divisors (see below), whose sum is σ = 985266023616. Its totient is φ = 249842425728.

The previous prime is 531323012189. The next prime is 531323012221. The reversal of 531323012212 is 212210323135.

It is a super-2 number, since 2×531323012212² (a number of 24 digits) contains 22 as substring.

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, 2909698 + ... + 3086905.

It is an arithmetic number, because the mean of its divisors is an integer number (41052750984).

Almost surely, 2^531323012212 is an apocalyptic number.

It is an amenable number.

531323012212 is a deficient number, since it is larger than the sum of its proper divisors (453943011404).

531323012212 is a wasteful number, since it uses less digits than its factorization.

531323012212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5997927 (or 5997925 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

Adding to 531323012212 its reverse (212210323135), we get a palindrome (743533335347).

The spelling of 531323012212 in words is "five hundred thirty-one billion, three hundred twenty-three million, twelve thousand, two hundred twelve".