1311616105263 has 28 divisors (see below), whose sum is σ = 1966712983920. Its totient is φ = 874326954816.

The previous prime is 1311616105243. The next prime is 1311616105277. The reversal of 1311616105263 is 3625016161131.

1311616105263 is a `hidden beast` number, since 1 + 3 + 1 + 1 + 616 + 10 + 5 + 26 + 3 = 666.

It is not a de Polignac number, because 1311616105263 - 2¹⁸ = 1311615843119 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311616105243) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 8054295 + ... + 8215527.

Almost surely, 2^{1311616105263} is an apocalyptic number.

1311616105263 is a deficient number, since it is larger than the sum of its proper divisors (655096878657).

1311616105263 is an equidigital number, since it uses as much as digits as its factorization.

1311616105263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172410 (or 172395 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The spelling of 1311616105263 in words is "one trillion, three hundred eleven billion, six hundred sixteen million, one hundred five thousand, two hundred sixty-three".