220131032031 has 6 divisors (see below), whose sum is σ = 317967046280. Its totient is φ = 146754021348.

The previous prime is 220131031993. The next prime is 220131032039. The reversal of 220131032031 is 130230131022.

220131032031 is a `hidden beast` number, since 2 + 2 + 0 + 1 + 310 + 320 + 31 = 666.

It is not a de Polignac number, because 220131032031 - 2¹¹ = 220131029983 is a prime.

It is a super-2 number, since 2×220131032031² (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 = 220131031995 and 220131032013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220131032039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12229501771 + ... + 12229501788.

Almost surely, 2^220131032031 is an apocalyptic number.

220131032031 is a deficient number, since it is larger than the sum of its proper divisors (97836014249).

220131032031 is a wasteful number, since it uses less digits than its factorization.

220131032031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24459003565 (or 24459003562 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 220131032031 its reverse (130230131022), we get a palindrome (350361163053).

The spelling of 220131032031 in words is "two hundred twenty billion, one hundred thirty-one million, thirty-two thousand, thirty-one".