211131033023 has 2 divisors, whose sum is σ = 211131033024. Its totient is φ = 211131033022.

The previous prime is 211131033017. The next prime is 211131033037. The reversal of 211131033023 is 320330131112.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211131033023 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 211131032986 and 211131033004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211131033053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105565516511 + 105565516512.

It is an arithmetic number, because the mean of its divisors is an integer number (105565516512).

Almost surely, 2^211131033023 is an apocalyptic number.

211131033023 is a deficient number, since it is larger than the sum of its proper divisors (1).

211131033023 is an equidigital number, since it uses as much as digits as its factorization.

211131033023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 211131033023 its reverse (320330131112), we get a palindrome (531461164135).

The spelling of 211131033023 in words is "two hundred eleven billion, one hundred thirty-one million, thirty-three thousand, twenty-three".