220311010231 has 16 divisors (see below), whose sum is σ = 239897316960. Its totient is φ = 201106627200.

The previous prime is 220311010229. The next prime is 220311010237. The reversal of 220311010231 is 132010113022.

It is a cyclic number.

It is not a de Polignac number, because 220311010231 - 2¹ = 220311010229 is a prime.

It is a super-2 number, since 2×220311010231² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220311010237) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 987276 + ... + 1189678.

It is an arithmetic number, because the mean of its divisors is an integer number (14993582310).

Almost surely, 2^220311010231 is an apocalyptic number.

220311010231 is a deficient number, since it is larger than the sum of its proper divisors (19586306729).

220311010231 is a wasteful number, since it uses less digits than its factorization.

220311010231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203346.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 220311010231 its reverse (132010113022), we get a palindrome (352321123253).

The spelling of 220311010231 in words is "two hundred twenty billion, three hundred eleven million, ten thousand, two hundred thirty-one".