213305500404404 has 6 divisors (see below), whose sum is σ = 373284625707714. Its totient is φ = 106652750202200.

The previous prime is 213305500404401. The next prime is 213305500404407. The reversal of 213305500404404 is 404404005503312.

It is an interprime number because it is at equal distance from previous prime (213305500404401) and next prime (213305500404407).

It can be written as a sum of positive squares in only one way, i.e., 180082980250000 + 33222520154404 = 13419500^2 + 5763898^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213305500404401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26663187550547 + ... + 26663187550554.

It is an arithmetic number, because the mean of its divisors is an integer number (62214104284619).

Almost surely, 2^{213305500404404} is an apocalyptic number.

It is an amenable number.

213305500404404 is a deficient number, since it is larger than the sum of its proper divisors (159979125303310).

213305500404404 is a wasteful number, since it uses less digits than its factorization.

213305500404404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53326375101105 (or 53326375101103 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 35.

Adding to 213305500404404 its reverse (404404005503312), we get a palindrome (617709505907716).

The spelling of 213305500404404 in words is "two hundred thirteen trillion, three hundred five billion, five hundred million, four hundred four thousand, four hundred four".