211432012042 has 4 divisors (see below), whose sum is σ = 317148018066. Its totient is φ = 105716006020.

The previous prime is 211432012039. The next prime is 211432012049. The reversal of 211432012042 is 240210234112.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 211369143001 + 62869041 = 459749^2 + 7929^2 .

It is a super-2 number, since 2×211432012042² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (211432012049) 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, 52858003009 + ... + 52858003012.

Almost surely, 2^211432012042 is an apocalyptic number.

211432012042 is a deficient number, since it is larger than the sum of its proper divisors (105716006024).

211432012042 is a wasteful number, since it uses less digits than its factorization.

211432012042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105716006023.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 211432012042 its reverse (240210234112), we get a palindrome (451642246154).

The spelling of 211432012042 in words is "two hundred eleven billion, four hundred thirty-two million, twelve thousand, forty-two".