220131030031231 has 8 divisors (see below), whose sum is σ = 244213161206400. Its totient is φ = 196727268748440.

The previous prime is 220131030031229. The next prime is 220131030031259. The reversal of 220131030031231 is 132130030131022.

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 220131030031231 - 2¹ = 220131030031229 is a prime.

It is a super-2 number, since 2×220131030031231² (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 (220131030031261) 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, 169592472411 + ... + 169592473708.

It is an arithmetic number, because the mean of its divisors is an integer number (30526645150800).

Almost surely, 2^{220131030031231} is an apocalyptic number.

220131030031231 is a deficient number, since it is larger than the sum of its proper divisors (24082131175169).

220131030031231 is a wasteful number, since it uses less digits than its factorization.

220131030031231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339184946189.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 220131030031231 its reverse (132130030131022), we get a palindrome (352261060162253).

The spelling of 220131030031231 in words is "two hundred twenty trillion, one hundred thirty-one billion, thirty million, thirty-one thousand, two hundred thirty-one".