1142140404431 has 4 divisors (see below), whose sum is σ = 1229997358632. Its totient is φ = 1054283450232.

The previous prime is 1142140404421. The next prime is 1142140404439. The reversal of 1142140404431 is 1344040412411.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1142140404431 - 2¹⁴ = 1142140388047 is a prime.

It is a super-2 number, since 2×1142140404431² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1142140404394 and 1142140404403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1142140404439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43928477081 + ... + 43928477106.

It is an arithmetic number, because the mean of its divisors is an integer number (307499339658).

Almost surely, 2^{1142140404431} is an apocalyptic number.

1142140404431 is a deficient number, since it is larger than the sum of its proper divisors (87856954201).

1142140404431 is an equidigital number, since it uses as much as digits as its factorization.

1142140404431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87856954200.

The product of its (nonzero) digits is 6144, while the sum is 29.

Adding to 1142140404431 its reverse (1344040412411), we get a palindrome (2486180816842).

The spelling of 1142140404431 in words is "one trillion, one hundred forty-two billion, one hundred forty million, four hundred four thousand, four hundred thirty-one".