211304442131 has 8 divisors (see below), whose sum is σ = 211554309120. Its totient is φ = 211054682952.

The previous prime is 211304442119. The next prime is 211304442143. The reversal of 211304442131 is 131244403112.

211304442131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (211304442119) and next prime (211304442143).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 211304442131 - 2¹⁸ = 211304179987 is a prime.

It is a super-2 number, since 2×211304442131² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 211304442131.

It is not an unprimeable number, because it can be changed into a prime (211304442031) by changing a digit.

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, 4298216 + ... + 4347098.

It is an arithmetic number, because the mean of its divisors is an integer number (26444288640).

Almost surely, 2^211304442131 is an apocalyptic number.

211304442131 is a deficient number, since it is larger than the sum of its proper divisors (249866989).

211304442131 is a wasteful number, since it uses less digits than its factorization.

211304442131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53905.

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 211304442131 its reverse (131244403112), we get a palindrome (342548845243).

The spelling of 211304442131 in words is "two hundred eleven billion, three hundred four million, four hundred forty-two thousand, one hundred thirty-one".