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12310111310 = 257175858733
BaseRepresentation
bin10110111011011110…
…10110010001001110
31011202220122110002112
423131233112101032
5200202342030220
65353304224022
7614025135230
oct133557262116
934686573075
1012310111310
115247811912
12247676b012
131212492a43
1484aca4250
154c0aca5c5
hex2ddbd644e

12310111310 has 16 divisors (see below), whose sum is σ = 25323657696. Its totient is φ = 4220609568.

The previous prime is 12310111291. The next prime is 12310111327. The reversal of 12310111310 is 1311101321.

It is a happy number.

It is a super-2 number, since 2×123101113102 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87929297 + ... + 87929436.

It is an arithmetic number, because the mean of its divisors is an integer number (1582728606).

Almost surely, 212310111310 is an apocalyptic number.

12310111310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12310111310 is an abundant number, since it is smaller than the sum of its proper divisors (13013546386).

12310111310 is a wasteful number, since it uses less digits than its factorization.

12310111310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175858747.

The product of its (nonzero) digits is 18, while the sum is 14.

Adding to 12310111310 its reverse (1311101321), we get a palindrome (13621212631).

It can be divided in two parts, 1231011 and 1310, that added together give a palindrome (1232321).

The spelling of 12310111310 in words is "twelve billion, three hundred ten million, one hundred eleven thousand, three hundred ten".

Divisors: 1 2 5 7 10 14 35 70 175858733 351717466 879293665 1231011131 1758587330 2462022262 6155055655 12310111310