215303540124 has 48 divisors (see below), whose sum is σ = 507219783840. Its totient is φ = 71076337920.

The previous prime is 215303540113. The next prime is 215303540131. The reversal of 215303540124 is 421045303512.

It is a super-2 number, since 2×215303540124² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 215303540091 and 215303540100.

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 15 ways as a sum of consecutive naturals, for example, 2857414 + ... + 2931794.

It is an arithmetic number, because the mean of its divisors is an integer number (10567078830).

Almost surely, 2^215303540124 is an apocalyptic number.

It is an amenable number.

215303540124 is an abundant number, since it is smaller than the sum of its proper divisors (291916243716).

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

215303540124 is a wasteful number, since it uses less digits than its factorization.

215303540124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76710 (or 76708 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

Adding to 215303540124 its reverse (421045303512), we get a palindrome (636348843636).

The spelling of 215303540124 in words is "two hundred fifteen billion, three hundred three million, five hundred forty thousand, one hundred twenty-four".