30000131003221 has 16 divisors (see below), whose sum is σ = 30763363921920. Its totient is φ = 29242305411760.

The previous prime is 30000131003179. The next prime is 30000131003231. The reversal of 30000131003221 is 12230013100003.

It is a cyclic number.

It is not a de Polignac number, because 30000131003221 - 2¹¹ = 30000131001173 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30000131003195 and 30000131003204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30000131003231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12587016 + ... + 14779486.

It is an arithmetic number, because the mean of its divisors is an integer number (1922710245120).

Almost surely, 2^{30000131003221} is an apocalyptic number.

It is an amenable number.

30000131003221 is a deficient number, since it is larger than the sum of its proper divisors (763232918699).

30000131003221 is a wasteful number, since it uses less digits than its factorization.

30000131003221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2193704.

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

Adding to 30000131003221 its reverse (12230013100003), we get a palindrome (42230144103224).

The spelling of 30000131003221 in words is "thirty trillion, one hundred thirty-one million, three thousand, two hundred twenty-one".