1313231202145 has 16 divisors (see below), whose sum is σ = 1613427583680. Its totient is φ = 1025578862784.

The previous prime is 1313231202139. The next prime is 1313231202149. The reversal of 1313231202145 is 5412021323131.

It is a cyclic number.

It is not a de Polignac number, because 1313231202145 - 2⁵ = 1313231202113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1313231202149) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1322479 + ... + 2091748.

It is an arithmetic number, because the mean of its divisors is an integer number (100839223980).

Almost surely, 2^{1313231202145} is an apocalyptic number.

It is an amenable number.

1313231202145 is a deficient number, since it is larger than the sum of its proper divisors (300196381535).

1313231202145 is a wasteful number, since it uses less digits than its factorization.

1313231202145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3416064.

The product of its (nonzero) digits is 4320, while the sum is 28.

Adding to 1313231202145 its reverse (5412021323131), we get a palindrome (6725252525276).

The spelling of 1313231202145 in words is "one trillion, three hundred thirteen billion, two hundred thirty-one million, two hundred two thousand, one hundred forty-five".