211123331101043 has 2 divisors, whose sum is σ = 211123331101044. Its totient is φ = 211123331101042.

The previous prime is 211123331101019. The next prime is 211123331101099. The reversal of 211123331101043 is 340101133321112.

211123331101043 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 211123331101043 - 2⁴² = 206725284589939 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (211123331101013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105561665550521 + 105561665550522.

It is an arithmetic number, because the mean of its divisors is an integer number (105561665550522).

Almost surely, 2^{211123331101043} is an apocalyptic number.

211123331101043 is a deficient number, since it is larger than the sum of its proper divisors (1).

211123331101043 is an equidigital number, since it uses as much as digits as its factorization.

211123331101043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 26.

Adding to 211123331101043 its reverse (340101133321112), we get a palindrome (551224464422155).

The spelling of 211123331101043 in words is "two hundred eleven trillion, one hundred twenty-three billion, three hundred thirty-one million, one hundred one thousand, forty-three".