1142310131 has 4 divisors (see below), whose sum is σ = 1143188112. Its totient is φ = 1141432152.

The previous prime is 1142310109. The next prime is 1142310133. The reversal of 1142310131 is 1310132411.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1142310131 is a prime.

It is a super-2 number, since 2×1142310131² = 2609744870770474322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1142310133) 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 in 3 ways as a sum of consecutive naturals, for example, 437036 + ... + 439641.

It is an arithmetic number, because the mean of its divisors is an integer number (285797028).

Almost surely, 2^1142310131 is an apocalyptic number.

1142310131 is a deficient number, since it is larger than the sum of its proper divisors (877981).

1142310131 is an equidigital number, since it uses as much as digits as its factorization.

1142310131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 877980.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 1142310131 is about 33798.0788063464. The cubic root of 1142310131 is about 1045.3490835614.

Adding to 1142310131 its reverse (1310132411), we get a palindrome (2452442542).

The spelling of 1142310131 in words is "one billion, one hundred forty-two million, three hundred ten thousand, one hundred thirty-one".