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312021330230111 = 19145111317832719
BaseRepresentation
bin100011011110010000010000…
…0100011001111101101011111
31111220202221120222121122120012
41012330200200203033231133
5311344124141014330421
63023340341551113435
7122502540302454305
oct10674404043175537
91456687528548505
10312021330230111
1190468559598977
122abb39a821287b
131051463cc5cc28
145709cad24a275
1526115ce1ac95b
hex11bc8208cfb5f

312021330230111 has 8 divisors (see below), whose sum is σ = 328669862188800. Its totient is φ = 295395433939800.

The previous prime is 312021330230087. The next prime is 312021330230117. The reversal of 312021330230111 is 111032033120213.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-312021330230111 is a prime.

It is a super-2 number, since 2×3120213302301112 (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312021330230117) 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, 5658888791 + ... + 5658943928.

It is an arithmetic number, because the mean of its divisors is an integer number (41083732773600).

Almost surely, 2312021330230111 is an apocalyptic number.

312021330230111 is a deficient number, since it is larger than the sum of its proper divisors (16648531958689).

312021330230111 is a wasteful number, since it uses less digits than its factorization.

312021330230111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11317834189.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 312021330230111 its reverse (111032033120213), we get a palindrome (423053363350324).

The spelling of 312021330230111 in words is "three hundred twelve trillion, twenty-one billion, three hundred thirty million, two hundred thirty thousand, one hundred eleven".

Divisors: 1 19 1451 27569 11317832719 215038821661 16422175275269 312021330230111