1361316213253 has 4 divisors (see below), whose sum is σ = 1441393637580. Its totient is φ = 1281238788928.

The previous prime is 1361316213199. The next prime is 1361316213317. The reversal of 1361316213253 is 3523126131631.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1237874309604 + 123441903649 = 1112598^2 + 351343^2 .

It is not a de Polignac number, because 1361316213253 - 2²⁹ = 1360779342341 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 (1361316283253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40038712138 + ... + 40038712171.

It is an arithmetic number, because the mean of its divisors is an integer number (360348409395).

Almost surely, 2^{1361316213253} is an apocalyptic number.

It is an amenable number.

1361316213253 is a deficient number, since it is larger than the sum of its proper divisors (80077424327).

1361316213253 is an equidigital number, since it uses as much as digits as its factorization.

1361316213253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80077424326.

The product of its digits is 58320, while the sum is 37.

The spelling of 1361316213253 in words is "one trillion, three hundred sixty-one billion, three hundred sixteen million, two hundred thirteen thousand, two hundred fifty-three".