211431655034 has 16 divisors (see below), whose sum is σ = 319137327168. Its totient is φ = 105052725792.

The previous prime is 211431655021. The next prime is 211431655049. The reversal of 211431655034 is 430556134112.

211431655034 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 = 211431654985 and 211431655003.

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 7 ways as a sum of consecutive naturals, for example, 2543294 + ... + 2625110.

It is an arithmetic number, because the mean of its divisors is an integer number (19946082948).

Almost surely, 2^211431655034 is an apocalyptic number.

211431655034 is a deficient number, since it is larger than the sum of its proper divisors (107705672134).

211431655034 is a wasteful number, since it uses less digits than its factorization.

211431655034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89909.

The product of its (nonzero) digits is 43200, while the sum is 35.

Adding to 211431655034 its reverse (430556134112), we get a palindrome (641987789146).

The spelling of 211431655034 in words is "two hundred eleven billion, four hundred thirty-one million, six hundred fifty-five thousand, thirty-four".