213303406450 has 72 divisors (see below), whose sum is σ = 423570889728. Its totient is φ = 79874852640.

The previous prime is 213303406441. The next prime is 213303406453. The reversal of 213303406450 is 54604303312.

It is not an unprimeable number, because it can be changed into a prime (213303406453) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1157359 + ... + 1328941.

It is an arithmetic number, because the mean of its divisors is an integer number (5882929024).

Almost surely, 2^213303406450 is an apocalyptic number.

213303406450 is a deficient number, since it is larger than the sum of its proper divisors (210267483278).

213303406450 is a wasteful number, since it uses less digits than its factorization.

213303406450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171688 (or 171660 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 31.

Adding to 213303406450 its reverse (54604303312), we get a palindrome (267907709762).

The spelling of 213303406450 in words is "two hundred thirteen billion, three hundred three million, four hundred six thousand, four hundred fifty".