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1313130131111 = 2292157289391
BaseRepresentation
bin10011000110111100101…
…001111010111010100111
311122112102022000020000102
4103012330221322322213
5133003242303143421
62443124343534315
7163604405644121
oct23067451727247
94575368006012
101313130131111
114669937a9017
121925b075a39b
1396a9b42c4a6
14477ad30a211
15242569ce60b
hex131bca7aea7

1313130131111 has 4 divisors (see below), whose sum is σ = 1313187443424. Its totient is φ = 1313072818800.

The previous prime is 1313130131009. The next prime is 1313130131149. The reversal of 1313130131111 is 1111310313131.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1313130131111 - 210 = 1313130130087 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 (1313130130111) 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, 28621775 + ... + 28667616.

It is an arithmetic number, because the mean of its divisors is an integer number (328296860856).

Almost surely, 21313130131111 is an apocalyptic number.

1313130131111 is a deficient number, since it is larger than the sum of its proper divisors (57312313).

1313130131111 is an equidigital number, since it uses as much as digits as its factorization.

1313130131111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57312312.

The product of its (nonzero) digits is 81, while the sum is 20.

Adding to 1313130131111 its reverse (1111310313131), we get a palindrome (2424440444242).

The spelling of 1313130131111 in words is "one trillion, three hundred thirteen billion, one hundred thirty million, one hundred thirty-one thousand, one hundred eleven".

Divisors: 1 22921 57289391 1313130131111