220131131 has 8 divisors (see below), whose sum is σ = 252782400. Its totient is φ = 189586440.

The previous prime is 220131089. The next prime is 220131133. The reversal of 220131131 is 131131022.

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 220131131 - 2²² = 215936827 is a prime.

It is a super-2 number, since 2×220131131² = 96915429670678322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220131133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 526421 + ... + 526838.

It is an arithmetic number, because the mean of its divisors is an integer number (31597800).

Almost surely, 2^220131131 is an apocalyptic number.

220131131 is a deficient number, since it is larger than the sum of its proper divisors (32651269).

220131131 is a wasteful number, since it uses less digits than its factorization.

220131131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1053289.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 220131131 is about 14836.8167407972. The cubic root of 220131131 is about 603.8009912253.

Adding to 220131131 its reverse (131131022), we get a palindrome (351262153).

The spelling of 220131131 in words is "two hundred twenty million, one hundred thirty-one thousand, one hundred thirty-one".