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13031331230203 = 1113613967376583
BaseRepresentation
bin1011110110100001011111…
…0111100111000111111011
31201010210010212201221011221
42331220113313213013323
53202001131243331303
643414302205332511
72513324351562016
oct275502767470773
951123125657157
1013031331230203
114174613831780
121565686567137
13736b06aa13a0
14330a111a037d
15178e950be4bd
hexbda17de71fb

13031331230203 has 32 divisors (see below), whose sum is σ = 15564475809792. Its totient is φ = 10753374326400.

The previous prime is 13031331230023. The next prime is 13031331230207. The reversal of 13031331230203 is 30203213313031.

It is a cyclic number.

It is not a de Polignac number, because 13031331230203 - 213 = 13031331222011 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13031331230207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34415850 + ... + 34792432.

It is an arithmetic number, because the mean of its divisors is an integer number (486389869056).

Almost surely, 213031331230203 is an apocalyptic number.

13031331230203 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

13031331230203 is a deficient number, since it is larger than the sum of its proper divisors (2533144579589).

13031331230203 is a wasteful number, since it uses less digits than its factorization.

13031331230203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380635.

The product of its (nonzero) digits is 2916, while the sum is 25.

Adding to 13031331230203 its reverse (30203213313031), we get a palindrome (43234544543234).

The spelling of 13031331230203 in words is "thirteen trillion, thirty-one billion, three hundred thirty-one million, two hundred thirty thousand, two hundred three".

Divisors: 1 11 13 61 143 671 793 3967 8723 43637 51571 241987 376583 567281 2661857 3145831 4142413 4895579 22971563 34604141 53851369 252687193 298630319 1493904761 3284933509 16432952371 19420761893 91128190421 213628380823 1002410094631 1184666475473 13031331230203