212134431303 has 16 divisors (see below), whose sum is σ = 332759892960. Its totient is φ = 133103956608.

The previous prime is 212134431293. The next prime is 212134431317. The reversal of 212134431303 is 303134431212.

It is a happy number.

212134431303 is a `hidden beast` number, since 2 + 1 + 2 + 1 + 344 + 313 + 0 + 3 = 666.

It is not a de Polignac number, because 212134431303 - 2¹⁰ = 212134430279 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212134431323) 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, 231082800 + ... + 231083717.

It is an arithmetic number, because the mean of its divisors is an integer number (20797493310).

Almost surely, 2^212134431303 is an apocalyptic number.

212134431303 is a deficient number, since it is larger than the sum of its proper divisors (120625461657).

212134431303 is a wasteful number, since it uses less digits than its factorization.

212134431303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 462166543 (or 462166537 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

Adding to 212134431303 its reverse (303134431212), we get a palindrome (515268862515).

Subtracting 212134431303 from its reverse (303134431212), we obtain a palindrome (90999999909).

It can be divided in two parts, 2121 and 34431303, that added together give a square (34433424 = 5868²).

The spelling of 212134431303 in words is "two hundred twelve billion, one hundred thirty-four million, four hundred thirty-one thousand, three hundred three".