1142321240245 has 32 divisors (see below), whose sum is σ = 1392165273600. Its totient is φ = 899725720320.

The previous prime is 1142321240243. The next prime is 1142321240267. The reversal of 1142321240245 is 5420421232411.

It is not a de Polignac number, because 1142321240245 - 2¹ = 1142321240243 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1142321240243) 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 31 ways as a sum of consecutive naturals, for example, 111735204 + ... + 111745426.

It is an arithmetic number, because the mean of its divisors is an integer number (43505164800).

Almost surely, 2^{1142321240245} is an apocalyptic number.

It is an amenable number.

1142321240245 is a deficient number, since it is larger than the sum of its proper divisors (249844033355).

1142321240245 is a wasteful number, since it uses less digits than its factorization.

1142321240245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11685.

The product of its (nonzero) digits is 15360, while the sum is 31.

Adding to 1142321240245 its reverse (5420421232411), we get a palindrome (6562742472656).

The spelling of 1142321240245 in words is "one trillion, one hundred forty-two billion, three hundred twenty-one million, two hundred forty thousand, two hundred forty-five".