2042321111 has 2 divisors, whose sum is σ = 2042321112. Its totient is φ = 2042321110.

The previous prime is 2042321081. The next prime is 2042321131. The reversal of 2042321111 is 1111232402.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2042321111 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2042321111.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2042321131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1021160555 + 1021160556.

It is an arithmetic number, because the mean of its divisors is an integer number (1021160556).

Almost surely, 2^2042321111 is an apocalyptic number.

2042321111 is a deficient number, since it is larger than the sum of its proper divisors (1).

2042321111 is an equidigital number, since it uses as much as digits as its factorization.

2042321111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 2042321111 is about 45192.0469883806. The cubic root of 2042321111 is about 1268.7459692463.

Adding to 2042321111 its reverse (1111232402), we get a palindrome (3153553513).

The spelling of 2042321111 in words is "two billion, forty-two million, three hundred twenty-one thousand, one hundred eleven".