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1311616105321 = 4811927257759
BaseRepresentation
bin10011000101100010011…
…010010111101101101001
311122101111210002202002011
4103011202122113231221
5132442142210332241
62442314221035521
7163522032641554
oct23054232275551
94571453082064
101311616105321
11466287109035
121922496b5ba1
13968b9869142
14476a81d569b
15241b8b14281
hex13162697b69

1311616105321 has 4 divisors (see below), whose sum is σ = 1311643411200. Its totient is φ = 1311588799444.

The previous prime is 1311616105307. The next prime is 1311616105337. The reversal of 1311616105321 is 1235016161131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1311616105321 - 239 = 761860291433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1311616105391) 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, 13580761 + ... + 13676998.

It is an arithmetic number, because the mean of its divisors is an integer number (327910852800).

Almost surely, 21311616105321 is an apocalyptic number.

It is an amenable number.

1311616105321 is a deficient number, since it is larger than the sum of its proper divisors (27305879).

1311616105321 is an equidigital number, since it uses as much as digits as its factorization.

1311616105321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27305878.

The product of its (nonzero) digits is 3240, while the sum is 31.

The spelling of 1311616105321 in words is "one trillion, three hundred eleven billion, six hundred sixteen million, one hundred five thousand, three hundred twenty-one".

Divisors: 1 48119 27257759 1311616105321