1142111029 has 2 divisors, whose sum is σ = 1142111030. Its totient is φ = 1142111028.

The previous prime is 1142111027. The next prime is 1142111039. The reversal of 1142111029 is 9201112411.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 763030129 + 379080900 = 27623^2 + 19470^2 .

It is an emirp because it is prime and its reverse (9201112411) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1142111029 - 2¹ = 1142111027 is a prime.

Together with 1142111027, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1142111027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 571055514 + 571055515.

It is an arithmetic number, because the mean of its divisors is an integer number (571055515).

Almost surely, 2^1142111029 is an apocalyptic number.

It is an amenable number.

1142111029 is a deficient number, since it is larger than the sum of its proper divisors (1).

1142111029 is an equidigital number, since it uses as much as digits as its factorization.

1142111029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 22.

The square root of 1142111029 is about 33795.1332147101. The cubic root of 1142111029 is about 1045.2883460609.

The spelling of 1142111029 in words is "one billion, one hundred forty-two million, one hundred eleven thousand, twenty-nine".