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12312112033 = 132274172183
BaseRepresentation
bin10110111011101101…
…11110101110100001
31011210001102002120101
423131312332232201
5200203400041113
65353415142401
7614051140234
oct133566765641
934701362511
1012312112033
115248959001
122477374a01
131212a135c0
1484b26541b
154c0d732dd
hex2dddbeba1

12312112033 has 8 divisors (see below), whose sum is σ = 13317611328. Its totient is φ = 11314957584.

The previous prime is 12312112031. The next prime is 12312112049. The reversal of 12312112033 is 33021121321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12312112033 - 21 = 12312112031 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12312112033.

It is not an unprimeable number, because it can be changed into a prime (12312112031) 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, 2083141 + ... + 2089042.

It is an arithmetic number, because the mean of its divisors is an integer number (1664701416).

Almost surely, 212312112033 is an apocalyptic number.

12312112033 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

12312112033 is a deficient number, since it is larger than the sum of its proper divisors (1005499295).

12312112033 is a wasteful number, since it uses less digits than its factorization.

12312112033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4172423.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 12312112033 its reverse (33021121321), we get a palindrome (45333233354).

The spelling of 12312112033 in words is "twelve billion, three hundred twelve million, one hundred twelve thousand, thirty-three".

Divisors: 1 13 227 2951 4172183 54238379 947085541 12312112033