215303030131 has 16 divisors (see below), whose sum is σ = 250142347008. Its totient is φ = 181485309600.

The previous prime is 215303030123. The next prime is 215303030203. The reversal of 215303030131 is 131030303512.

It is a happy number.

It is not a de Polignac number, because 215303030131 - 2³ = 215303030123 is a prime.

It is a super-2 number, since 2×215303030131² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (215303030101) by changing a digit.

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, 2316156 + ... + 2407318.

It is an arithmetic number, because the mean of its divisors is an integer number (15633896688).

Almost surely, 2^215303030131 is an apocalyptic number.

215303030131 is a deficient number, since it is larger than the sum of its proper divisors (34839316877).

215303030131 is an equidigital number, since it uses as much as digits as its factorization.

215303030131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96762.

The product of its (nonzero) digits is 810, while the sum is 22.

Adding to 215303030131 its reverse (131030303512), we get a palindrome (346333333643).

The spelling of 215303030131 in words is "two hundred fifteen billion, three hundred three million, thirty thousand, one hundred thirty-one".