1142042131 has 2 divisors, whose sum is σ = 1142042132. Its totient is φ = 1142042130.

The previous prime is 1142042129. The next prime is 1142042147. The reversal of 1142042131 is 1312402411.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1142042131 - 2¹ = 1142042129 is a prime.

It is a super-2 number, since 2×1142042131² = 2608520457958042322, which contains 22 as substring.

Together with 1142042129, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 1142042099 and 1142042108.

It is not a weakly prime, because it can be changed into another prime (1142042731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 571021065 + 571021066.

It is an arithmetic number, because the mean of its divisors is an integer number (571021066).

Almost surely, 2^1142042131 is an apocalyptic number.

1142042131 is a deficient number, since it is larger than the sum of its proper divisors (1).

1142042131 is an equidigital number, since it uses as much as digits as its factorization.

1142042131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 1142042131 is about 33794.1138513795. The cubic root of 1142042131 is about 1045.2673265853.

Adding to 1142042131 its reverse (1312402411), we get a palindrome (2454444542).

The spelling of 1142042131 in words is "one billion, one hundred forty-two million, forty-two thousand, one hundred thirty-one".