210042440331 has 8 divisors (see below), whose sum is σ = 280077088464. Its totient is φ = 140018042880.

The previous prime is 210042440323. The next prime is 210042440347. The reversal of 210042440331 is 133044240012.

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

It is not a de Polignac number, because 210042440331 - 2³ = 210042440323 is a prime.

It is a super-2 number, since 2×210042440331² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (210042444331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2514730 + ... + 2596911.

It is an arithmetic number, because the mean of its divisors is an integer number (35009636058).

Almost surely, 2^210042440331 is an apocalyptic number.

210042440331 is a deficient number, since it is larger than the sum of its proper divisors (70034648133).

210042440331 is a wasteful number, since it uses less digits than its factorization.

210042440331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5125341.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 210042440331 its reverse (133044240012), we get a palindrome (343086680343).

The spelling of 210042440331 in words is "two hundred ten billion, forty-two million, four hundred forty thousand, three hundred thirty-one".