215212011303 has 4 divisors (see below), whose sum is σ = 286949348408. Its totient is φ = 143474674200.

The previous prime is 215212011283. The next prime is 215212011307. The reversal of 215212011303 is 303110212512.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 215212011303 - 2⁵ = 215212011271 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 215212011303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215212011307) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35868668548 + ... + 35868668553.

It is an arithmetic number, because the mean of its divisors is an integer number (71737337102).

Almost surely, 2^215212011303 is an apocalyptic number.

215212011303 is a deficient number, since it is larger than the sum of its proper divisors (71737337105).

215212011303 is an equidigital number, since it uses as much as digits as its factorization.

215212011303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71737337104.

The product of its (nonzero) digits is 360, while the sum is 21.

Adding to 215212011303 its reverse (303110212512), we get a palindrome (518322223815).

The spelling of 215212011303 in words is "two hundred fifteen billion, two hundred twelve million, eleven thousand, three hundred three".