210003231400 has 48 divisors (see below), whose sum is σ = 491367506940. Its totient is φ = 83466240000.

The previous prime is 210003231287. The next prime is 210003231409. The reversal of 210003231400 is 4132300012.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 128891052196 + 81112179204 = 359014^2 + 284802^2 .

It is not an unprimeable number, because it can be changed into a prime (210003231409) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3312601 + ... + 3375400.

Almost surely, 2^210003231400 is an apocalyptic number.

210003231400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210003231400 is an abundant number, since it is smaller than the sum of its proper divisors (281364275540).

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

210003231400 is a wasteful number, since it uses less digits than its factorization.

210003231400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6688174 (or 6688165 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 210003231400 its reverse (4132300012), we get a palindrome (214135531412).

The spelling of 210003231400 in words is "two hundred ten billion, three million, two hundred thirty-one thousand, four hundred".