1042280111 has 2 divisors, whose sum is σ = 1042280112. Its totient is φ = 1042280110.

The previous prime is 1042280077. The next prime is 1042280143. The reversal of 1042280111 is 1110822401.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1042280111 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1042280011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 521140055 + 521140056.

It is an arithmetic number, because the mean of its divisors is an integer number (521140056).

Almost surely, 2^1042280111 is an apocalyptic number.

1042280111 is a deficient number, since it is larger than the sum of its proper divisors (1).

1042280111 is an equidigital number, since it uses as much as digits as its factorization.

1042280111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 128, while the sum is 20.

The square root of 1042280111 is about 32284.3632583949. The cubic root of 1042280111 is about 1013.8992851378.

The spelling of 1042280111 in words is "one billion, forty-two million, two hundred eighty thousand, one hundred eleven".