220311132 has 24 divisors (see below), whose sum is σ = 514302096. Its totient is φ = 73402368.

The previous prime is 220311131. The next prime is 220311139. The reversal of 220311132 is 231113022.

220311132 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220311131) 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, 41628 + ... + 46620.

It is an arithmetic number, because the mean of its divisors is an integer number (21429254).

Almost surely, 2^220311132 is an apocalyptic number.

It is an amenable number.

220311132 is an abundant number, since it is smaller than the sum of its proper divisors (293990964).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

220311132 is a wasteful number, since it uses less digits than its factorization.

220311132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8677 (or 8675 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 220311132 is about 14842.8815261727. The cubic root of 220311132 is about 603.9655222049.

Adding to 220311132 its reverse (231113022), we get a palindrome (451424154).

The spelling of 220311132 in words is "two hundred twenty million, three hundred eleven thousand, one hundred thirty-two".