1320031433245 has 12 divisors (see below), whose sum is σ = 1842656123484. Its totient is φ = 905164411200.

The previous prime is 1320031433243. The next prime is 1320031433311. The reversal of 1320031433245 is 5423341300231.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 412700886724 + 907330546521 = 642418^2 + 952539^2 .

It is not a de Polignac number, because 1320031433245 - 2¹ = 1320031433243 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 (1320031433243) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2693941456 + ... + 2693941945.

It is an arithmetic number, because the mean of its divisors is an integer number (153554676957).

Almost surely, 2^{1320031433245} is an apocalyptic number.

It is an amenable number.

1320031433245 is a deficient number, since it is larger than the sum of its proper divisors (522624690239).

1320031433245 is an equidigital number, since it uses as much as digits as its factorization.

1320031433245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5387883420 (or 5387883413 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 31.

Adding to 1320031433245 its reverse (5423341300231), we get a palindrome (6743372733476).

The spelling of 1320031433245 in words is "one trillion, three hundred twenty billion, thirty-one million, four hundred thirty-three thousand, two hundred forty-five".