30221023031 has 8 divisors (see below), whose sum is σ = 30267922944. Its totient is φ = 30174159960.

The previous prime is 30221023003. The next prime is 30221023039. The reversal of 30221023031 is 13032012203.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30221023031 is a prime.

It is a super-2 number, since 2×30221023031² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30221023039) 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 7 ways as a sum of consecutive naturals, for example, 1938590 + ... + 1954116.

It is an arithmetic number, because the mean of its divisors is an integer number (3783490368).

Almost surely, 2^30221023031 is an apocalyptic number.

30221023031 is a deficient number, since it is larger than the sum of its proper divisors (46899913).

30221023031 is a wasteful number, since it uses less digits than its factorization.

30221023031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18421.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 30221023031 its reverse (13032012203), we get a palindrome (43253035234).

The spelling of 30221023031 in words is "thirty billion, two hundred twenty-one million, twenty-three thousand, thirty-one".