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12311122102120 = 2351489206701177
BaseRepresentation
bin1011001100100110100000…
…0011110100011101101000
31121120221011021012110101201
42303021220003310131220
53103201134224231440
642103352412253544
72410310040155512
oct263115003643550
947527137173351
1012311122102120
113a17132527036
121469b89a712b4
136b3c1a8277ba
14307c0bcd6bb2
15165391c3c19a
hexb32680f4768

12311122102120 has 32 divisors (see below), whose sum is σ = 27718627969800. Its totient is φ = 4921141598208.

The previous prime is 12311122102067. The next prime is 12311122102163. The reversal of 12311122102120 is 2120122111321.

It can be written as a sum of positive squares in 4 ways, for example, as 9909186268996 + 2401935833124 = 3147886^2 + 1549818^2 .

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, 103291029 + ... + 103410148.

Almost surely, 212311122102120 is an apocalyptic number.

12311122102120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12311122102120 is an abundant number, since it is smaller than the sum of its proper divisors (15407505867680).

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

12311122102120 is a wasteful number, since it uses less digits than its factorization.

12311122102120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206702677 (or 206702673 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 12311122102120 its reverse (2120122111321), we get a palindrome (14431244213441).

The spelling of 12311122102120 in words is "twelve trillion, three hundred eleven billion, one hundred twenty-two million, one hundred two thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 1489 2978 5956 7445 11912 14890 29780 59560 206701177 413402354 826804708 1033505885 1653609416 2067011770 4134023540 8268047080 307778052553 615556105106 1231112210212 1538890262765 2462224420424 3077780525530 6155561051060 12311122102120