210311223242 has 8 divisors (see below), whose sum is σ = 334023707556. Its totient is φ = 98969987392.

The previous prime is 210311223163. The next prime is 210311223247. The reversal of 210311223242 is 242322113012.

It can be written as a sum of positive squares in 2 ways, for example, as 202446903481 + 7864319761 = 449941^2 + 88681^2 .

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

It is not an unprimeable number, because it can be changed into a prime (210311223247) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3092812073 + ... + 3092812140.

Almost surely, 2^210311223242 is an apocalyptic number.

210311223242 is a deficient number, since it is larger than the sum of its proper divisors (123712484314).

210311223242 is a wasteful number, since it uses less digits than its factorization.

210311223242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6185624232.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 210311223242 its reverse (242322113012), we get a palindrome (452633336254).

The spelling of 210311223242 in words is "two hundred ten billion, three hundred eleven million, two hundred twenty-three thousand, two hundred forty-two".