2031223443111 has 10 divisors (see below), whose sum is σ = 3034296748472. Its totient is φ = 1354148962020.

The previous prime is 2031223443107. The next prime is 2031223443121. The reversal of 2031223443111 is 1113443221302.

2031223443111 is a `hidden beast` number, since 2 + 0 + 3 + 1 + 2 + 2 + 344 + 311 + 1 = 666.

It is not a de Polignac number, because 2031223443111 - 2² = 2031223443107 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2031223443121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 12538416235 + ... + 12538416396.

Almost surely, 2^{2031223443111} is an apocalyptic number.

2031223443111 is a deficient number, since it is larger than the sum of its proper divisors (1003073305361).

2031223443111 is an equidigital number, since it uses as much as digits as its factorization.

2031223443111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25076832643 (or 25076832634 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

Adding to 2031223443111 its reverse (1113443221302), we get a palindrome (3144666664413).

The spelling of 2031223443111 in words is "two trillion, thirty-one billion, two hundred twenty-three million, four hundred forty-three thousand, one hundred eleven".