211131032131 has 2 divisors, whose sum is σ = 211131032132. Its totient is φ = 211131032130.

The previous prime is 211131032117. The next prime is 211131032137. The reversal of 211131032131 is 131230131112.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 211131032131 - 2¹¹ = 211131030083 is a prime.

It is a super-2 number, since 2×211131032131² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 211131032099 and 211131032108.

It is not a weakly prime, because it can be changed into another prime (211131032137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105565516065 + 105565516066.

It is an arithmetic number, because the mean of its divisors is an integer number (105565516066).

Almost surely, 2^211131032131 is an apocalyptic number.

211131032131 is a deficient number, since it is larger than the sum of its proper divisors (1).

211131032131 is an equidigital number, since it uses as much as digits as its factorization.

211131032131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 211131032131 its reverse (131230131112), we get a palindrome (342361163243).

The spelling of 211131032131 in words is "two hundred eleven billion, one hundred thirty-one million, thirty-two thousand, one hundred thirty-one".