211043131043 has 4 divisors (see below), whose sum is σ = 211044222480. Its totient is φ = 211042039608.

The previous prime is 211043131027. The next prime is 211043131111. The reversal of 211043131043 is 340131340112.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 211043131043 - 2⁴ = 211043131027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211043101043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 168980 + ... + 671297.

It is an arithmetic number, because the mean of its divisors is an integer number (52761055620).

Almost surely, 2^211043131043 is an apocalyptic number.

211043131043 is a deficient number, since it is larger than the sum of its proper divisors (1091437).

211043131043 is an equidigital number, since it uses as much as digits as its factorization.

211043131043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1091436.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 211043131043 its reverse (340131340112), we get a palindrome (551174471155).

The spelling of 211043131043 in words is "two hundred eleven billion, forty-three million, one hundred thirty-one thousand, forty-three".