213336243331451 has 8 divisors (see below), whose sum is σ = 225885800913840. Its totient is φ = 200786726504448.

The previous prime is 213336243331439. The next prime is 213336243331459. The reversal of 213336243331451 is 154133342633312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 213336243331451 - 2¹⁸ = 213336243069307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213336243331459) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 935195 + ... + 20677211.

It is an arithmetic number, because the mean of its divisors is an integer number (28235725114230).

Almost surely, 2^{213336243331451} is an apocalyptic number.

213336243331451 is a deficient number, since it is larger than the sum of its proper divisors (12549557582389).

213336243331451 is a wasteful number, since it uses less digits than its factorization.

213336243331451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20377693.

The product of its digits is 1399680, while the sum is 44.

Adding to 213336243331451 its reverse (154133342633312), we get a palindrome (367469585964763).

The spelling of 213336243331451 in words is "two hundred thirteen trillion, three hundred thirty-six billion, two hundred forty-three million, three hundred thirty-one thousand, four hundred fifty-one".