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231001023310013 = 11167457448361379
BaseRepresentation
bin110100100001100000011101…
…111011111110100010111101
31010021220111000111021202222102
4310201200131323332202331
5220234210043431410023
62135144223300154445
766441162462530135
oct6441403573764275
91107814014252872
10231001023310013
1167670a90524250
1221aa9667398a25
139bb83c29a5a38
14410871b2b1ac5
151ba8d00367628
hexd2181defe8bd

231001023310013 has 32 divisors (see below), whose sum is σ = 254125644917760. Its totient is φ = 208236816524160.

The previous prime is 231001023309929. The next prime is 231001023310033. The reversal of 231001023310013 is 310013320100132.

It is a cyclic number.

It is not a de Polignac number, because 231001023310013 - 218 = 231001023047869 is a prime.

It is a super-2 number, since 2×2310010233100132 (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231001023310033) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3763488158 + ... + 3763549536.

It is an arithmetic number, because the mean of its divisors is an integer number (7941426403680).

Almost surely, 2231001023310013 is an apocalyptic number.

It is an amenable number.

231001023310013 is a deficient number, since it is larger than the sum of its proper divisors (23124621607747).

231001023310013 is a wasteful number, since it uses less digits than its factorization.

231001023310013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66497.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 231001023310013 its reverse (310013320100132), we get a palindrome (541014343410145).

The spelling of 231001023310013 in words is "two hundred thirty-one trillion, one billion, twenty-three million, three hundred ten thousand, thirteen".

Divisors: 1 11 167 457 1837 4483 5027 49313 61379 76319 675169 748661 839509 2048731 8235271 10250293 22536041 28050203 112753223 275162057 308552233 342138077 3026782627 3763518847 4684383901 45952063519 51528222911 125749060049 505472698709 1383239660539 21000093028183 231001023310013