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12311101313112 = 233773280364959
BaseRepresentation
bin1011001100100110011011…
…0100100001000001011000
31121120221002211002021020110
42303021212310201001120
53103201113414004422
642103350350524320
72410306365362250
oct263114664410130
947527084067213
1012311101313112
113a17121817a38
121469b82b066a0
136b3c16429204
14307c09244960
1516538eed260c
hexb3266d21058

12311101313112 has 32 divisors (see below), whose sum is σ = 35174575180800. Its totient is φ = 3517457517984.

The previous prime is 12311101313107. The next prime is 12311101313123. The reversal of 12311101313112 is 21131310111321.

It is a Harshad number since it is a multiple of its sum of digits (21).

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, 36640182312 + ... + 36640182647.

It is an arithmetic number, because the mean of its divisors is an integer number (1099205474400).

Almost surely, 212311101313112 is an apocalyptic number.

12311101313112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12311101313112 is an abundant number, since it is smaller than the sum of its proper divisors (22863473867688).

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

12311101313112 is a wasteful number, since it uses less digits than its factorization.

12311101313112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73280364975 (or 73280364971 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 21.

Adding to 12311101313112 its reverse (21131310111321), we get a palindrome (33442411424433).

The spelling of 12311101313112 in words is "twelve trillion, three hundred eleven billion, one hundred one million, three hundred thirteen thousand, one hundred twelve".

Divisors: 1 2 3 4 6 7 8 12 14 21 24 28 42 56 84 168 73280364959 146560729918 219841094877 293121459836 439682189754 512962554713 586242919672 879364379508 1025925109426 1538887664139 1758728759016 2051850218852 3077775328278 4103700437704 6155550656556 12311101313112