210121300323 has 48 divisors (see below), whose sum is σ = 332503516800. Its totient is φ = 126807690240.

The previous prime is 210121300271. The next prime is 210121300351. The reversal of 210121300323 is 323003121012.

210121300323 is a `hidden beast` number, since 21 + 0 + 1 + 21 + 300 + 323 = 666.

It is not a de Polignac number, because 210121300323 - 2⁹ = 210121299811 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 210121300296 and 210121300305.

It is not an unprimeable number, because it can be changed into a prime (210121300223) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 23930148 + ... + 23938926.

It is an arithmetic number, because the mean of its divisors is an integer number (6927156600).

Almost surely, 2^210121300323 is an apocalyptic number.

210121300323 is a deficient number, since it is larger than the sum of its proper divisors (122382216477).

210121300323 is a wasteful number, since it uses less digits than its factorization.

210121300323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9792 (or 9789 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 210121300323 its reverse (323003121012), we get a palindrome (533124421335).

The spelling of 210121300323 in words is "two hundred ten billion, one hundred twenty-one million, three hundred thousand, three hundred twenty-three".