215231132512 has 48 divisors (see below), whose sum is σ = 466834659984. Its totient is φ = 96863680000.

The previous prime is 215231132509. The next prime is 215231132527.

215231132512 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2991439 + ... + 3062542.

It is an arithmetic number, because the mean of its divisors is an integer number (9725722083).

Almost surely, 2^215231132512 is an apocalyptic number.

215231132512 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

215231132512 is an abundant number, since it is smaller than the sum of its proper divisors (251603527472).

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

215231132512 is a wasteful number, since it uses less digits than its factorization.

215231132512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6054103 (or 6054095 counting only the distinct ones).

The product of its digits is 3600, while the sum is 28.

It can be divided in two parts, 215231 and 132512, that added together give a palindrome (347743).

The spelling of 215231132512 in words is "two hundred fifteen billion, two hundred thirty-one million, one hundred thirty-two thousand, five hundred twelve".