1142142311 has 8 divisors (see below), whose sum is σ = 1157435664. Its totient is φ = 1126920960.

The previous prime is 1142142301. The next prime is 1142142317. The reversal of 1142142311 is 1132412411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1142142311 - 2⁶ = 1142142247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1142142317) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14321 + ... + 49893.

It is an arithmetic number, because the mean of its divisors is an integer number (144679458).

Almost surely, 2^1142142311 is an apocalyptic number.

1142142311 is a deficient number, since it is larger than the sum of its proper divisors (15293353).

1142142311 is an equidigital number, since it uses as much as digits as its factorization.

1142142311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36001.

The product of its digits is 192, while the sum is 20.

The square root of 1142142311 is about 33795.5960296604. The cubic root of 1142142311 is about 1045.2978893279.

Adding to 1142142311 its reverse (1132412411), we get a palindrome (2274554722).

The spelling of 1142142311 in words is "one billion, one hundred forty-two million, one hundred forty-two thousand, three hundred eleven".