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312312031103 = 23107568922307
BaseRepresentation
bin1001000101101110011…
…11110110011101111111
31002212010120012000022002
410202313033312131333
520104103334443403
6355250230412515
731364245314632
oct4426717663577
91085116160262
10312312031103
111104a5aaa516
125064080113b
13235b2814407
141118a385c19
1581cd518188
hex48b73f677f

312312031103 has 16 divisors (see below), whose sum is σ = 329009091840. Its totient is φ = 295876063296.

The previous prime is 312312031093. The next prime is 312312031111. The reversal of 312312031103 is 301130213213.

It is a cyclic number.

It is not a de Polignac number, because 312312031103 - 28 = 312312030847 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312312031123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13989476 + ... + 14011782.

It is an arithmetic number, because the mean of its divisors is an integer number (20563068240).

Almost surely, 2312312031103 is an apocalyptic number.

312312031103 is a deficient number, since it is larger than the sum of its proper divisors (16697060737).

312312031103 is a wasteful number, since it uses less digits than its factorization.

312312031103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28126.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 312312031103 its reverse (301130213213), we get a palindrome (613442244316).

The spelling of 312312031103 in words is "three hundred twelve billion, three hundred twelve million, thirty-one thousand, one hundred three".

Divisors: 1 23 107 2461 5689 22307 130847 513061 608723 2386849 14000629 54897527 126904523 2918804029 13578783961 312312031103