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312123141321213 = 3372811920192083
BaseRepresentation
bin100011011110111111101010…
…0111101101111000111111101
31111221010200101101010221202010
41012331333110331233013331
5311402311143134234323
63023455220332121433
7122513103260452635
oct10675772475570775
91457120341127663
10312123141321213
11904a7754273582
122b00b680606279
1310521116a43ac1
145710baaa2d6c5
15261408c3e1c93
hex11bdfd4f6f1fd

312123141321213 has 8 divisors (see below), whose sum is σ = 427411869196768. Its totient is φ = 202458253829904.

The previous prime is 312123141321203. The next prime is 312123141321241.

312123141321213 is nontrivially palindromic in base 10.

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

It is not a de Polignac number, because 312123141321213 - 216 = 312123141255677 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 (312123141321203) 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, 1405960095931 + ... + 1405960096152.

It is an arithmetic number, because the mean of its divisors is an integer number (53426483649596).

Almost surely, 2312123141321213 is an apocalyptic number.

It is an amenable number.

312123141321213 is a deficient number, since it is larger than the sum of its proper divisors (115288727875555).

312123141321213 is a wasteful number, since it uses less digits than its factorization.

312123141321213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2811920192123.

The product of its digits is 5184, while the sum is 30.

The spelling of 312123141321213 in words is "three hundred twelve trillion, one hundred twenty-three billion, one hundred forty-one million, three hundred twenty-one thousand, two hundred thirteen".

Divisors: 1 3 37 111 2811920192083 8435760576249 104041047107071 312123141321213