212303531320 has 32 divisors (see below), whose sum is σ = 477722311920. Its totient is φ = 84914414080.

The previous prime is 212303531309. The next prime is 212303531327. The reversal of 212303531320 is 23135303212.

212303531320 is digitally balanced in base 2, because in such base 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 (212303531327) 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 7 ways as a sum of consecutive naturals, for example, 287184 + ... + 712096.

Almost surely, 2^212303531320 is an apocalyptic number.

212303531320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212303531320 is an abundant number, since it is smaller than the sum of its proper divisors (265418780600).

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

212303531320 is a wasteful number, since it uses less digits than its factorization.

212303531320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437415 (or 437411 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 25.

Adding to 212303531320 its reverse (23135303212), we get a palindrome (235438834532).

The spelling of 212303531320 in words is "two hundred twelve billion, three hundred three million, five hundred thirty-one thousand, three hundred twenty".