210042240231 has 16 divisors (see below), whose sum is σ = 297404951040. Its totient is φ = 131484286080.

The previous prime is 210042240209. The next prime is 210042240251. The reversal of 210042240231 is 132042240012.

It is not a de Polignac number, because 210042240231 - 2⁷ = 210042240103 is a prime.

It is a super-2 number, since 2×210042240231² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 210042240198 and 210042240207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210042240251) 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, 16298655 + ... + 16311536.

It is an arithmetic number, because the mean of its divisors is an integer number (18587809440).

Almost surely, 2^210042240231 is an apocalyptic number.

210042240231 is a deficient number, since it is larger than the sum of its proper divisors (87362710809).

210042240231 is a wasteful number, since it uses less digits than its factorization.

210042240231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32610326.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 210042240231 its reverse (132042240012), we get a palindrome (342084480243).

The spelling of 210042240231 in words is "two hundred ten billion, forty-two million, two hundred forty thousand, two hundred thirty-one".