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20312042334311 = 713223209256421
BaseRepresentation
bin1001001111001010001000…
…00100010110100001100111
32122220210221011011111111202
410213211010010112201213
510130243030314144221
6111111120132153115
74164332226060530
oct447450404264147
978823834144452
1020312042334311
11652131a400342
122340739a6879b
13b44556c7a340
1450317287b687
15253569878d0b
hex127944116867

20312042334311 has 8 divisors (see below), whose sum is σ = 24999436719264. Its totient is φ = 16071066462240.

The previous prime is 20312042334257. The next prime is 20312042334313. The reversal of 20312042334311 is 11343324021302.

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 20312042334311 - 234 = 20294862465127 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20312042334313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111604628120 + ... + 111604628301.

It is an arithmetic number, because the mean of its divisors is an integer number (3124929589908).

Almost surely, 220312042334311 is an apocalyptic number.

20312042334311 is a deficient number, since it is larger than the sum of its proper divisors (4687394384953).

20312042334311 is a wasteful number, since it uses less digits than its factorization.

20312042334311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223209256441.

The product of its (nonzero) digits is 10368, while the sum is 29.

Adding to 20312042334311 its reverse (11343324021302), we get a palindrome (31655366355613).

The spelling of 20312042334311 in words is "twenty trillion, three hundred twelve billion, forty-two million, three hundred thirty-four thousand, three hundred eleven".

Divisors: 1 7 13 91 223209256421 1562464794947 2901720333473 20312042334311