210421302303400 has 48 divisors (see below), whose sum is σ = 492057444282300. Its totient is φ = 83681997665280.

The previous prime is 210421302303389. The next prime is 210421302303431. The reversal of 210421302303400 is 4303203124012.

210421302303400 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 86653496793796 + 123767805509604 = 9308786^2 + 11125098^2 .

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 11 ways as a sum of consecutive naturals, for example, 3040735665 + ... + 3040804864.

Almost surely, 2^{210421302303400} is an apocalyptic number.

210421302303400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210421302303400 is an abundant number, since it is smaller than the sum of its proper divisors (281636141978900).

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

210421302303400 is a wasteful number, since it uses less digits than its factorization.

210421302303400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6081540718 (or 6081540709 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 210421302303400 its reverse (4303203124012), we get a palindrome (214724505427412).

The spelling of 210421302303400 in words is "two hundred ten trillion, four hundred twenty-one billion, three hundred two million, three hundred three thousand, four hundred".