213031433400 has 48 divisors (see below), whose sum is σ = 660397445400. Its totient is φ = 56808382080.

The previous prime is 213031433393. The next prime is 213031433423. The reversal of 213031433400 is 4334130312.

213031433400 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 177525595 + ... + 177526794.

Almost surely, 2^213031433400 is an apocalyptic number.

213031433400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213031433400 is an abundant number, since it is smaller than the sum of its proper divisors (447366012000).

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

213031433400 is a wasteful number, since it uses less digits than its factorization.

213031433400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355052408 (or 355052399 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 213031433400 its reverse (4334130312), we get a palindrome (217365563712).

The spelling of 213031433400 in words is "two hundred thirteen billion, thirty-one million, four hundred thirty-three thousand, four hundred".