30131300221 has 4 divisors (see below), whose sum is σ = 32870509344. Its totient is φ = 27392091100.

The previous prime is 30131300183. The next prime is 30131300239. The reversal of 30131300221 is 12200313103.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 30131300221 - 2⁷ = 30131300093 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30131300195 and 30131300204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30131300321) 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, 1369604545 + ... + 1369604566.

It is an arithmetic number, because the mean of its divisors is an integer number (8217627336).

Almost surely, 2^30131300221 is an apocalyptic number.

It is an amenable number.

30131300221 is a deficient number, since it is larger than the sum of its proper divisors (2739209123).

30131300221 is a wasteful number, since it uses less digits than its factorization.

30131300221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2739209122.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 30131300221 its reverse (12200313103), we get a palindrome (42331613324).

The spelling of 30131300221 in words is "thirty billion, one hundred thirty-one million, three hundred thousand, two hundred twenty-one".