220311330031 has 8 divisors (see below), whose sum is σ = 237269020464. Its totient is φ = 203355163200.

The previous prime is 220311330011. The next prime is 220311330061. The reversal of 220311330031 is 130033113022.

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 220311330031 - 2⁵ = 220311329999 is a prime.

It is a super-2 number, since 2×220311330031² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 220311329990 and 220311330008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220311330011) 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, 71245 + ... + 667606.

It is an arithmetic number, because the mean of its divisors is an integer number (29658627558).

Almost surely, 2^220311330031 is an apocalyptic number.

220311330031 is a deficient number, since it is larger than the sum of its proper divisors (16957690433).

220311330031 is a wasteful number, since it uses less digits than its factorization.

220311330031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 761801.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 220311330031 its reverse (130033113022), we get a palindrome (350344443053).

The spelling of 220311330031 in words is "two hundred twenty billion, three hundred eleven million, three hundred thirty thousand, thirty-one".