211433364142 has 128 divisors (see below), whose sum is σ = 437144924160. Its totient is φ = 74044938240.

The previous prime is 211433364041. The next prime is 211433364173. The reversal of 211433364142 is 241463334112.

211433364142 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 211433364098 and 211433364107.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 11536378 + ... + 11554690.

It is an arithmetic number, because the mean of its divisors is an integer number (3415194720).

Almost surely, 2^211433364142 is an apocalyptic number.

211433364142 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

211433364142 is an abundant number, since it is smaller than the sum of its proper divisors (225711560018).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

211433364142 is a wasteful number, since it uses less digits than its factorization.

211433364142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18498.

The product of its digits is 41472, while the sum is 34.

Adding to 211433364142 its reverse (241463334112), we get a palindrome (452896698254).

It can be divided in two parts, 211433 and 364142, that added together give a palindrome (575575).

The spelling of 211433364142 in words is "two hundred eleven billion, four hundred thirty-three million, three hundred sixty-four thousand, one hundred forty-two".