1361316443253 has 32 divisors (see below), whose sum is σ = 1964939961600. Its totient is φ = 833351016960.

The previous prime is 1361316443233. The next prime is 1361316443257. The reversal of 1361316443253 is 3523446131631.

It is not a de Polignac number, because 1361316443253 - 2⁹ = 1361316442741 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1361316443257) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 44540625 + ... + 44571177.

It is an arithmetic number, because the mean of its divisors is an integer number (61404373800).

Almost surely, 2^{1361316443253} is an apocalyptic number.

1361316443253 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1361316443253 is a deficient number, since it is larger than the sum of its proper divisors (603623518347).

1361316443253 is a wasteful number, since it uses less digits than its factorization.

1361316443253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36509.

The product of its digits is 466560, while the sum is 42.

The spelling of 1361316443253 in words is "one trillion, three hundred sixty-one billion, three hundred sixteen million, four hundred forty-three thousand, two hundred fifty-three".