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13230303023 = 717472365511
BaseRepresentation
bin11000101001001011…
…00110011100101111
31021011001011000211002
430110211212130233
5204043424144043
610024455150515
7645600502010
oct142445463457
937131130732
1013230303023
11567a185533
12269297543b
13132b008b92
148d7199007
15526794bb8
hex31496672f

13230303023 has 16 divisors (see below), whose sum is σ = 16350418944. Its totient is φ = 10446092160.

The previous prime is 13230303019. The next prime is 13230303029. The reversal of 13230303023 is 32030303231.

It is not a de Polignac number, because 13230303023 - 22 = 13230303019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13230302986 and 13230303004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13230303029) 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, 1177163 + ... + 1188348.

It is an arithmetic number, because the mean of its divisors is an integer number (1021901184).

Almost surely, 213230303023 is an apocalyptic number.

13230303023 is a deficient number, since it is larger than the sum of its proper divisors (3120115921).

13230303023 is a wasteful number, since it uses less digits than its factorization.

13230303023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2365582.

The product of its (nonzero) digits is 972, while the sum is 20.

Adding to 13230303023 its reverse (32030303231), we get a palindrome (45260606254).

The spelling of 13230303023 in words is "thirteen billion, two hundred thirty million, three hundred three thousand, twenty-three".

Divisors: 1 7 17 47 119 329 799 5593 2365511 16558577 40213687 111179017 281495809 778253119 1890043289 13230303023