211432012424 has 8 divisors (see below), whose sum is σ = 396435023310. Its totient is φ = 105716006208.

The previous prime is 211432012403. The next prime is 211432012427. The reversal of 211432012424 is 424210234112.

It can be written as a sum of positive squares in only one way, i.e., 210881171524 + 550840900 = 459218^2 + 23470^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 211432012393 and 211432012402.

It is not an unprimeable number, because it can be changed into a prime (211432012427) 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 as a sum of consecutive naturals, namely, 13214500769 + ... + 13214500784.

Almost surely, 2^211432012424 is an apocalyptic number.

It is an amenable number.

211432012424 is a deficient number, since it is larger than the sum of its proper divisors (185003010886).

211432012424 is a wasteful number, since it uses less digits than its factorization.

211432012424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26429001559 (or 26429001555 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 211432012424 its reverse (424210234112), we get a palindrome (635642246536).

The spelling of 211432012424 in words is "two hundred eleven billion, four hundred thirty-two million, twelve thousand, four hundred twenty-four".