213453030400 has 66 divisors (see below), whose sum is σ = 529105100570. Its totient is φ = 85381201920.

The previous prime is 213453030391. The next prime is 213453030419. The reversal of 213453030400 is 4030354312.

It can be written as a sum of positive squares in 3 ways, for example, as 11830477824 + 201622552576 = 108768^2 + 449024^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4143405 + ... + 4194604.

Almost surely, 2^213453030400 is an apocalyptic number.

213453030400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213453030400 is an abundant number, since it is smaller than the sum of its proper divisors (315652070170).

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

213453030400 is an equidigital number, since it uses as much as digits as its factorization.

213453030400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8338039 (or 8338016 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 25.

Adding to 213453030400 its reverse (4030354312), we get a palindrome (217483384712).

The spelling of 213453030400 in words is "two hundred thirteen billion, four hundred fifty-three million, thirty thousand, four hundred".