211043123131 has 2 divisors, whose sum is σ = 211043123132. Its totient is φ = 211043123130.

The previous prime is 211043123099. The next prime is 211043123167. The reversal of 211043123131 is 131321340112.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 211043123131 - 2⁵ = 211043123099 is a prime.

It is a super-2 number, since 2×211043123131² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (211043120131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105521561565 + 105521561566.

It is an arithmetic number, because the mean of its divisors is an integer number (105521561566).

Almost surely, 2^211043123131 is an apocalyptic number.

211043123131 is a deficient number, since it is larger than the sum of its proper divisors (1).

211043123131 is an equidigital number, since it uses as much as digits as its factorization.

211043123131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 211043123131 its reverse (131321340112), we get a palindrome (342364463243).

The spelling of 211043123131 in words is "two hundred eleven billion, forty-three million, one hundred twenty-three thousand, one hundred thirty-one".