220031131130213 has 8 divisors (see below), whose sum is σ = 237269623377528. Its totient is φ = 202837356114624.

The previous prime is 220031131130203. The next prime is 220031131130219. The reversal of 220031131130213 is 312031131130022.

It can be written as a sum of positive squares in 4 ways, for example, as 22052844004 + 220009078286209 = 148502^2 + 14832703^2 .

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 220031131130213 - 2²² = 220031126935909 is a prime.

It is a super-2 number, since 2×220031131130213² (a number of 29 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 (220031131130219) 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, 11179297706 + ... + 11179317387.

It is an arithmetic number, because the mean of its divisors is an integer number (29658702922191).

Almost surely, 2^{220031131130213} is an apocalyptic number.

It is an amenable number.

220031131130213 is a deficient number, since it is larger than the sum of its proper divisors (17238492247315).

220031131130213 is a wasteful number, since it uses less digits than its factorization.

220031131130213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22358615863.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 220031131130213 its reverse (312031131130022), we get a palindrome (532062262260235).

The spelling of 220031131130213 in words is "two hundred twenty trillion, thirty-one billion, one hundred thirty-one million, one hundred thirty thousand, two hundred thirteen".