212431434420203 has 16 divisors (see below), whose sum is σ = 214742480486400. Its totient is φ = 210132940749120.

The previous prime is 212431434420157. The next prime is 212431434420221. The reversal of 212431434420203 is 302024434134212.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 212431434420203 - 2¹⁸ = 212431434158059 is a prime.

It is a super-2 number, since 2×212431434420203² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212431434420253) 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, 1832780150 + ... + 1832896052.

It is an arithmetic number, because the mean of its divisors is an integer number (13421405030400).

Almost surely, 2^{212431434420203} is an apocalyptic number.

212431434420203 is a deficient number, since it is larger than the sum of its proper divisors (2311046066197).

212431434420203 is a wasteful number, since it uses less digits than its factorization.

212431434420203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169882.

The product of its (nonzero) digits is 110592, while the sum is 35.

Adding to 212431434420203 its reverse (302024434134212), we get a palindrome (514455868554415).

The spelling of 212431434420203 in words is "two hundred twelve trillion, four hundred thirty-one billion, four hundred thirty-four million, four hundred twenty thousand, two hundred three".