215030030323 has 4 divisors (see below), whose sum is σ = 226347400360. Its totient is φ = 203712660288.

The previous prime is 215030030251. The next prime is 215030030329. The reversal of 215030030323 is 323030030512.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-215030030323 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 215030030294 and 215030030303.

It is not an unprimeable number, because it can be changed into a prime (215030030329) 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, 5658684990 + ... + 5658685027.

It is an arithmetic number, because the mean of its divisors is an integer number (56586850090).

Almost surely, 2^215030030323 is an apocalyptic number.

215030030323 is a deficient number, since it is larger than the sum of its proper divisors (11317370037).

215030030323 is a wasteful number, since it uses less digits than its factorization.

215030030323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11317370036.

The product of its (nonzero) digits is 1620, while the sum is 22.

Adding to 215030030323 its reverse (323030030512), we get a palindrome (538060060835).

The spelling of 215030030323 in words is "two hundred fifteen billion, thirty million, thirty thousand, three hundred twenty-three".