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12113010312 = 2331338823751
BaseRepresentation
bin10110100011111110…
…11101111010001000
31011021011202200100120
423101333131322020
5144301412312222
65321543503240
7606112613604
oct132177357210
934234680316
1012113010312
115156529a27
122420757b20
1311b06b2130
1482ca38504
154ad64515c
hex2d1fdde88

12113010312 has 32 divisors (see below), whose sum is σ = 32611951680. Its totient is φ = 3727080000.

The previous prime is 12113010311. The next prime is 12113010353. The reversal of 12113010312 is 21301031121.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12113010291 and 12113010300.

It is not an unprimeable number, because it can be changed into a prime (12113010311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19411564 + ... + 19412187.

It is an arithmetic number, because the mean of its divisors is an integer number (1019123490).

Almost surely, 212113010312 is an apocalyptic number.

12113010312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12113010312 is an abundant number, since it is smaller than the sum of its proper divisors (20498941368).

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

12113010312 is a wasteful number, since it uses less digits than its factorization.

12113010312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38823773 (or 38823769 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 12113010312 its reverse (21301031121), we get a palindrome (33414041433).

The spelling of 12113010312 in words is "twelve billion, one hundred thirteen million, ten thousand, three hundred twelve".

Divisors: 1 2 3 4 6 8 12 13 24 26 39 52 78 104 156 312 38823751 77647502 116471253 155295004 232942506 310590008 465885012 504708763 931770024 1009417526 1514126289 2018835052 3028252578 4037670104 6056505156 12113010312