326531612153212 has 24 divisors (see below), whose sum is σ = 575893086569136. Its totient is φ = 161991938314368.

The previous prime is 326531612153101. The next prime is 326531612153213. The reversal of 326531612153212 is 212351216135623.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (326531612153213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 149922498 + ... + 152084905.

It is an arithmetic number, because the mean of its divisors is an integer number (23995545273714).

Almost surely, 2^{326531612153212} is an apocalyptic number.

It is an amenable number.

326531612153212 is a deficient number, since it is larger than the sum of its proper divisors (249361474415924).

326531612153212 is a wasteful number, since it uses less digits than its factorization.

326531612153212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302009517 (or 302009515 counting only the distinct ones).

The product of its digits is 388800, while the sum is 43.

Adding to 326531612153212 its reverse (212351216135623), we get a palindrome (538882828288835).

The spelling of 326531612153212 in words is "three hundred twenty-six trillion, five hundred thirty-one billion, six hundred twelve million, one hundred fifty-three thousand, two hundred twelve".