213203333400 has 48 divisors (see below), whose sum is σ = 660930335400. Its totient is φ = 56854222080.

The previous prime is 213203333377. The next prime is 213203333411. The reversal of 213203333400 is 4333302312.

It is a happy number.

It is a super-2 number, since 2×213203333400² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

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 11 ways as a sum of consecutive naturals, for example, 177668845 + ... + 177670044.

Almost surely, 2^213203333400 is an apocalyptic number.

213203333400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213203333400 is an abundant number, since it is smaller than the sum of its proper divisors (447727002000).

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

213203333400 is a wasteful number, since it uses less digits than its factorization.

213203333400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355338908 (or 355338899 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 24.

Adding to 213203333400 its reverse (4333302312), we get a palindrome (217536635712).

The spelling of 213203333400 in words is "two hundred thirteen billion, two hundred three million, three hundred thirty-three thousand, four hundred".