211302232320 has 72 divisors (see below), whose sum is σ = 674846516736. Its totient is φ = 56347260928.

The previous prime is 211302232307. The next prime is 211302232327. The reversal of 211302232320 is 23232203112.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (211302232327) 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, 27509472 + ... + 27517151.

It is an arithmetic number, because the mean of its divisors is an integer number (9372868288).

Almost surely, 2^211302232320 is an apocalyptic number.

211302232320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211302232320 is an abundant number, since it is smaller than the sum of its proper divisors (463544284416).

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

211302232320 is an equidigital number, since it uses as much as digits as its factorization.

211302232320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55026647 (or 55026633 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 211302232320 its reverse (23232203112), we get a palindrome (234534435432).

The spelling of 211302232320 in words is "two hundred eleven billion, three hundred two million, two hundred thirty-two thousand, three hundred twenty".