213421033300 has 72 divisors (see below), whose sum is σ = 466030531512. Its totient is φ = 84834048000.

The previous prime is 213421033277. The next prime is 213421033363. The reversal of 213421033300 is 3330124312.

It can be written as a sum of positive squares in 12 ways, for example, as 137554941456 + 75866091844 = 370884^2 + 275438^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12130510 + ... + 12148090.

It is an arithmetic number, because the mean of its divisors is an integer number (6472646271).

Almost surely, 2^213421033300 is an apocalyptic number.

213421033300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213421033300 is an abundant number, since it is smaller than the sum of its proper divisors (252609498212).

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

213421033300 is a wasteful number, since it uses less digits than its factorization.

213421033300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18349 (or 18342 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 213421033300 its reverse (3330124312), we get a palindrome (216751157612).

The spelling of 213421033300 in words is "two hundred thirteen billion, four hundred twenty-one million, thirty-three thousand, three hundred".