1142431230011 has 4 divisors (see below), whose sum is σ = 1143354781152. Its totient is φ = 1141507678872.

The previous prime is 1142431230001. The next prime is 1142431230029. The reversal of 1142431230011 is 1100321342411.

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-1142431230011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1142431230001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 461773715 + ... + 461776188.

It is an arithmetic number, because the mean of its divisors is an integer number (285838695288).

Almost surely, 2^{1142431230011} is an apocalyptic number.

1142431230011 is a deficient number, since it is larger than the sum of its proper divisors (923551141).

1142431230011 is an equidigital number, since it uses as much as digits as its factorization.

1142431230011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 923551140.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 1142431230011 its reverse (1100321342411), we get a palindrome (2242752572422).

The spelling of 1142431230011 in words is "one trillion, one hundred forty-two billion, four hundred thirty-one million, two hundred thirty thousand, eleven".