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11113110031 = 2313112912857
BaseRepresentation
bin10100101100110010…
…01001101000001111
31001200111021111000211
422112121021220033
5140224424010111
65034424303251
7542251606462
oct122631115017
931614244024
1011113110031
114793074061
1221a1911b27
1310814ab46a
14775d152d9
15450983521
hex296649a0f

11113110031 has 16 divisors (see below), whose sum is σ = 11697954048. Its totient is φ = 10536926400.

The previous prime is 11113109993. The next prime is 11113110049. The reversal of 11113110031 is 13001131111.

It is a cyclic number.

It is not a de Polignac number, because 11113110031 - 215 = 11113077263 is a prime.

It is a super-2 number, since 2×111131100312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11113109993 and 11113110020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11113110131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3888355 + ... + 3891211.

It is an arithmetic number, because the mean of its divisors is an integer number (731122128).

Almost surely, 211113110031 is an apocalyptic number.

11113110031 is a deficient number, since it is larger than the sum of its proper divisors (584844017).

11113110031 is a wasteful number, since it uses less digits than its factorization.

11113110031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4302.

The product of its (nonzero) digits is 9, while the sum is 13.

Adding to 11113110031 its reverse (13001131111), we get a palindrome (24114241142).

The spelling of 11113110031 in words is "eleven billion, one hundred thirteen million, one hundred ten thousand, thirty-one".

Divisors: 1 23 131 1291 2857 3013 29693 65711 169121 374267 3688387 3889783 8608141 84832901 483178697 11113110031