215351324112 has 80 divisors (see below), whose sum is σ = 582793056000. Its totient is φ = 68431114752.

The previous prime is 215351324107. The next prime is 215351324131. The reversal of 215351324112 is 211423153512.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 215351324112.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 869187 + ... + 1089122.

It is an arithmetic number, because the mean of its divisors is an integer number (7284913200).

Almost surely, 2^215351324112 is an apocalyptic number.

It is an amenable number.

215351324112 is an abundant number, since it is smaller than the sum of its proper divisors (367441731888).

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

215351324112 is a wasteful number, since it uses less digits than its factorization.

215351324112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1958428 (or 1958422 counting only the distinct ones).

The product of its digits is 7200, while the sum is 30.

Adding to 215351324112 its reverse (211423153512), we get a palindrome (426774477624).

The spelling of 215351324112 in words is "two hundred fifteen billion, three hundred fifty-one million, three hundred twenty-four thousand, one hundred twelve".