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20031303022231 = 535237091019261
BaseRepresentation
bin1001000110111111001101…
…01100110111011010010111
32121220222021221121210111111
410203133212230313122113
510111143102033202411
6110334130434315451
74135133235226234
oct443374654673227
977828257553444
1020031303022231
116423256382a46
1222b624aa28b87
13b23c366015b7
144d373d77278b
1524b0d809a721
hex1237e6b37697

20031303022231 has 16 divisors (see below), whose sum is σ = 20477136661920. Its totient is φ = 19588089755520.

The previous prime is 20031303022219. The next prime is 20031303022243. The reversal of 20031303022231 is 13222030313002.

It is an interprime number because it is at equal distance from previous prime (20031303022219) and next prime (20031303022243).

It is a cyclic number.

It is not a de Polignac number, because 20031303022231 - 231 = 20029155538583 is a prime.

It is a super-2 number, since 2×200313030222312 (a number of 27 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 (20031303022331) 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, 19143141 + ... + 20162401.

It is an arithmetic number, because the mean of its divisors is an integer number (1279821041370).

Almost surely, 220031303022231 is an apocalyptic number.

20031303022231 is a deficient number, since it is larger than the sum of its proper divisors (445833639689).

20031303022231 is a wasteful number, since it uses less digits than its factorization.

20031303022231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1020546.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 20031303022231 its reverse (13222030313002), we get a palindrome (33253333335233).

The spelling of 20031303022231 in words is "twenty trillion, thirty-one billion, three hundred three million, twenty-two thousand, two hundred thirty-one".

Divisors: 1 53 523 709 27719 37577 370807 1019261 19652771 54020833 533073503 722656049 28252895659 38300770597 377949113627 20031303022231