1316243340252 has 36 divisors (see below), whose sum is σ = 3441900691320. Its totient is φ = 423618545952.

The previous prime is 1316243340239. The next prime is 1316243340257. The reversal of 1316243340252 is 2520433426131.

1316243340252 is a `hidden beast` number, since 1 + 3 + 1 + 6 + 243 + 3 + 402 + 5 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1316243340257) 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, 630383698 + ... + 630385785.

Almost surely, 2^{1316243340252} is an apocalyptic number.

1316243340252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1316243340252 is an abundant number, since it is smaller than the sum of its proper divisors (2125657351068).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1316243340252 is a wasteful number, since it uses less digits than its factorization.

1316243340252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1260769522 (or 1260769517 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 36.

Adding to 1316243340252 its reverse (2520433426131), we get a palindrome (3836676766383).

The spelling of 1316243340252 in words is "one trillion, three hundred sixteen billion, two hundred forty-three million, three hundred forty thousand, two hundred fifty-two".