220030031 has 8 divisors (see below), whose sum is σ = 250894224. Its totient is φ = 191157120.

The previous prime is 220030007. The next prime is 220030043. The reversal of 220030031 is 130030022.

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

It is a cyclic number.

It is not a de Polignac number, because 220030031 - 2⁶ = 220029967 is a prime.

It is a super-2 number, since 2×220030031² = 96826429083721922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 220029994 and 220030021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220030001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 497585 + ... + 498026.

It is an arithmetic number, because the mean of its divisors is an integer number (31361778).

Almost surely, 2^220030031 is an apocalyptic number.

220030031 is a deficient number, since it is larger than the sum of its proper divisors (30864193).

220030031 is a wasteful number, since it uses less digits than its factorization.

220030031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 995641.

The product of its (nonzero) digits is 36, while the sum is 11.

The square root of 220030031 is about 14833.4092844497. The cubic root of 220030031 is about 603.7085408335.

Adding to 220030031 its reverse (130030022), we get a palindrome (350060053).

Subtracting from 220030031 its reverse (130030022), we obtain a palindrome (90000009).

The spelling of 220030031 in words is "two hundred twenty million, thirty thousand, thirty-one".