1012142111 has 2 divisors, whose sum is σ = 1012142112. Its totient is φ = 1012142110.

The previous prime is 1012142101. The next prime is 1012142119. The reversal of 1012142111 is 1112412101.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1012142111 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1012142119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506071055 + 506071056.

It is an arithmetic number, because the mean of its divisors is an integer number (506071056).

Almost surely, 2^1012142111 is an apocalyptic number.

1012142111 is a deficient number, since it is larger than the sum of its proper divisors (1).

1012142111 is an equidigital number, since it uses as much as digits as its factorization.

1012142111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16, while the sum is 14.

The square root of 1012142111 is about 31814.1809732704. The cubic root of 1012142111 is about 1004.0310987415.

Adding to 1012142111 its reverse (1112412101), we get a palindrome (2124554212).

The spelling of 1012142111 in words is "one billion, twelve million, one hundred forty-two thousand, one hundred eleven".