210131223243 has 16 divisors (see below), whose sum is σ = 292520624640. Its totient is φ = 133921491264.

The previous prime is 210131223223. The next prime is 210131223259. The reversal of 210131223243 is 342322131012.

It is not a de Polignac number, because 210131223243 - 2¹⁰ = 210131222219 is a prime.

It is not an unprimeable number, because it can be changed into a prime (210131223223) 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 15 ways as a sum of consecutive naturals, for example, 730978 + ... + 977031.

It is an arithmetic number, because the mean of its divisors is an integer number (18282539040).

Almost surely, 2^210131223243 is an apocalyptic number.

210131223243 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

210131223243 is a deficient number, since it is larger than the sum of its proper divisors (82389401397).

210131223243 is a wasteful number, since it uses less digits than its factorization.

210131223243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1709818.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 210131223243 its reverse (342322131012), we get a palindrome (552453354255).

The spelling of 210131223243 in words is "two hundred ten billion, one hundred thirty-one million, two hundred twenty-three thousand, two hundred forty-three".