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20010231122313 = 315289743624643
BaseRepresentation
bin1001000110010111111101…
…01101111100100110001001
32121211221220102010100222210
410203023332231330212021
510110321423131403223
6110320323454335333
74133456116102545
oct443137655744611
977757812110883
1020010231122313
116415322891723
1222b2149aba549
13b21c58b34273
144d2700d84a25
1524a7a3199893
hex1232feb7c989

20010231122313 has 8 divisors (see below), whose sum is σ = 26680483273248. Its totient is φ = 13340066526464.

The previous prime is 20010231122293. The next prime is 20010231122327. The reversal of 20010231122313 is 31322113201002.

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 20010231122313 - 220 = 20010230073737 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20010231122313.

It is not an unprimeable number, because it can be changed into a prime (20010231124313) 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, 21353631 + ... + 22271012.

It is an arithmetic number, because the mean of its divisors is an integer number (3335060409156).

Almost surely, 220010231122313 is an apocalyptic number.

It is an amenable number.

20010231122313 is a deficient number, since it is larger than the sum of its proper divisors (6670252150935).

20010231122313 is a wasteful number, since it uses less digits than its factorization.

20010231122313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43777543.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 20010231122313 its reverse (31322113201002), we get a palindrome (51332344323315).

The spelling of 20010231122313 in words is "twenty trillion, ten billion, two hundred thirty-one million, one hundred twenty-two thousand, three hundred thirteen".

Divisors: 1 3 152897 458691 43624643 130873929 6670077040771 20010231122313