220311465132 has 96 divisors (see below), whose sum is σ = 564545721600. Its totient is φ = 66315110400.

The previous prime is 220311465131. The next prime is 220311465139. The reversal of 220311465132 is 231564113022.

220311465132 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 220311465132.

It is not an unprimeable number, because it can be changed into a prime (220311465131) 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 31 ways as a sum of consecutive naturals, for example, 23836032 + ... + 23845272.

It is an arithmetic number, because the mean of its divisors is an integer number (5880684600).

Almost surely, 2^220311465132 is an apocalyptic number.

220311465132 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 220311465132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (282272860800).

220311465132 is an abundant number, since it is smaller than the sum of its proper divisors (344234256468).

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

220311465132 is a wasteful number, since it uses less digits than its factorization.

220311465132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10447 (or 10445 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

Adding to 220311465132 its reverse (231564113022), we get a palindrome (451875578154).

The spelling of 220311465132 in words is "two hundred twenty billion, three hundred eleven million, four hundred sixty-five thousand, one hundred thirty-two".