1316243340253 has 8 divisors (see below), whose sum is σ = 1316685220928. Its totient is φ = 1315801537344.

The previous prime is 1316243340239. The next prime is 1316243340257. The reversal of 1316243340253 is 3520433426131.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1316243340253 - 2²¹ = 1316241243101 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 (1316243340257) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64679626 + ... + 64699972.

It is an arithmetic number, because the mean of its divisors is an integer number (164585652616).

Almost surely, 2^{1316243340253} is an apocalyptic number.

It is an amenable number.

1316243340253 is a deficient number, since it is larger than the sum of its proper divisors (441880675).

1316243340253 is a wasteful number, since it uses less digits than its factorization.

1316243340253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38883.

The product of its (nonzero) digits is 155520, while the sum is 37.

Adding to 1316243340253 its reverse (3520433426131), we get a palindrome (4836676766384).

The spelling of 1316243340253 in words is "one trillion, three hundred sixteen billion, two hundred forty-three million, three hundred forty thousand, two hundred fifty-three".