213344331 has 16 divisors (see below), whose sum is σ = 307526400. Its totient is φ = 131100768.

The previous prime is 213344311. The next prime is 213344359. The reversal of 213344331 is 133443312.

213344331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 213344331 - 2¹⁰ = 213343307 is a prime.

It is a super-2 number, since 2×213344331² = 91031607139675122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (213344311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48471 + ... + 52688.

It is an arithmetic number, because the mean of its divisors is an integer number (19220400).

Almost surely, 2^213344331 is an apocalyptic number.

213344331 is a deficient number, since it is larger than the sum of its proper divisors (94182069).

213344331 is a wasteful number, since it uses less digits than its factorization.

213344331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101218.

The product of its digits is 2592, while the sum is 24.

The square root of 213344331 is about 14606.3113413346. The cubic root of 213344331 is about 597.5309004053.

Adding to 213344331 its reverse (133443312), we get a palindrome (346787643).

It can be divided in two parts, 2133 and 44331, that added together give a palindrome (46464).

The spelling of 213344331 in words is "two hundred thirteen million, three hundred forty-four thousand, three hundred thirty-one".