211043131042 has 16 divisors (see below), whose sum is σ = 335344893912. Its totient is φ = 99267379200.

The previous prime is 211043131027. The next prime is 211043131111. The reversal of 211043131042 is 240131340112.

It can be written as a sum of positive squares in 4 ways, for example, as 136780885921 + 74262245121 = 369839^2 + 272511^2 .

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 1396959 + ... + 1540642.

Almost surely, 2^211043131042 is an apocalyptic number.

211043131042 is a deficient number, since it is larger than the sum of its proper divisors (124301762870).

211043131042 is a wasteful number, since it uses less digits than its factorization.

211043131042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2939733.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 211043131042 its reverse (240131340112), we get a palindrome (451174471154).

The spelling of 211043131042 in words is "two hundred eleven billion, forty-three million, one hundred thirty-one thousand, forty-two".