215453203300 has 18 divisors (see below), whose sum is σ = 467533451378. Its totient is φ = 86181281280.

The previous prime is 215453203291. The next prime is 215453203307. The reversal of 215453203300 is 3302354512.

It can be written as a sum of positive squares in 3 ways, for example, as 112656996 + 215340546304 = 10614^2 + 464048^2 .

It is a super-2 number, since 2×215453203300² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (215453203307) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 1077265917 + ... + 1077266116.

Almost surely, 2^215453203300 is an apocalyptic number.

215453203300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

215453203300 is an abundant number, since it is smaller than the sum of its proper divisors (252080248078).

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

215453203300 is a wasteful number, since it uses less digits than its factorization.

215453203300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2154532047 (or 2154532040 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 28.

Adding to 215453203300 its reverse (3302354512), we get a palindrome (218755557812).

The spelling of 215453203300 in words is "two hundred fifteen billion, four hundred fifty-three million, two hundred three thousand, three hundred".