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12311013110 = 2511289114319
BaseRepresentation
bin10110111011100101…
…10010011011110110
31011202222100021010112
423131302302123312
5200203104404420
65353335423022
7614035612334
oct133562623366
934688307115
1012311013110
115248278400
122476b24a72
13121271a356
1484b05ab54
154c0c078c5
hex2ddcb26f6

12311013110 has 48 divisors (see below), whose sum is σ = 24631387200. Its totient is φ = 4426392960.

The previous prime is 12311013109. The next prime is 12311013157. The reversal of 12311013110 is 1131011321.

It is a happy number.

It is a super-2 number, since 2×123110131102 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 50531 + ... + 164849.

It is an arithmetic number, because the mean of its divisors is an integer number (513153900).

Almost surely, 212311013110 is an apocalyptic number.

12311013110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12311013110 is an abundant number, since it is smaller than the sum of its proper divisors (12320374090).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12311013110 is a wasteful number, since it uses less digits than its factorization.

12311013110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114437 (or 114426 counting only the distinct ones).

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

Adding to 12311013110 its reverse (1131011321), we get a palindrome (13442024431).

The spelling of 12311013110 in words is "twelve billion, three hundred eleven million, thirteen thousand, one hundred ten".

Divisors: 1 2 5 10 11 22 55 89 110 121 178 242 445 605 890 979 1210 1958 4895 9790 10769 21538 53845 107690 114319 228638 571595 1143190 1257509 2515018 6287545 10174391 12575090 13832599 20348782 27665198 50871955 69162995 101743910 111918301 138325990 223836602 559591505 1119183010 1231101311 2462202622 6155506555 12311013110