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12130212107 = 132139516377
BaseRepresentation
bin10110100110000010…
…00101100100001011
31011022101010121210002
423103001011210023
5144320313241412
65323400313215
7606412046606
oct132301054413
934271117702
1012130212107
115165208992
12242647280b
1311b4125a00
1483103533d
154aede1dc2
hex2d304590b

12130212107 has 12 divisors (see below), whose sum is σ = 13229604360. Its totient is φ = 11116542528.

The previous prime is 12130212103. The next prime is 12130212221. The reversal of 12130212107 is 70121203121.

It is not a de Polignac number, because 12130212107 - 22 = 12130212103 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12130212103) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 234698 + ... + 281679.

It is an arithmetic number, because the mean of its divisors is an integer number (1102467030).

Almost surely, 212130212107 is an apocalyptic number.

12130212107 is a deficient number, since it is larger than the sum of its proper divisors (1099392253).

12130212107 is a wasteful number, since it uses less digits than its factorization.

12130212107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 516542 (or 516529 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 20.

Adding to 12130212107 its reverse (70121203121), we get a palindrome (82251415228).

The spelling of 12130212107 in words is "twelve billion, one hundred thirty million, two hundred twelve thousand, one hundred seven".

Divisors: 1 13 139 169 1807 23491 516377 6712901 71776403 87267713 933093239 12130212107