30221131031 has 16 divisors (see below), whose sum is σ = 37202317824. Its totient is φ = 23906673504.

The previous prime is 30221131021. The next prime is 30221131049. The reversal of 30221131031 is 13013112203.

It is not a de Polignac number, because 30221131031 - 2¹⁰ = 30221130007 is a prime.

It is a super-2 number, since 2×30221131031² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30221131001) 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, 497540 + ... + 554966.

It is an arithmetic number, because the mean of its divisors is an integer number (2325144864).

Almost surely, 2^30221131031 is an apocalyptic number.

30221131031 is a deficient number, since it is larger than the sum of its proper divisors (6981186793).

30221131031 is a wasteful number, since it uses less digits than its factorization.

30221131031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63230.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 30221131031 its reverse (13013112203), we get a palindrome (43234243234).

The spelling of 30221131031 in words is "thirty billion, two hundred twenty-one million, one hundred thirty-one thousand, thirty-one".