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20310010301231 = 737611090970717
BaseRepresentation
bin1001001111000110010101…
…11100110000101100101111
32122220121200112112112011022
410213203022330300230233
510130224400114114411
6111110142342444355
74164230663062040
oct447431274605457
978817615475138
1020310010301231
116520477374862
1223402714336bb
13b442c1c987c1
1450301ca448c7
1525349b289edb
hex1278caf30b2f

20310010301231 has 16 divisors (see below), whose sum is σ = 23220068604480. Its totient is φ = 17402110087680.

The previous prime is 20310010301213. The next prime is 20310010301263. The reversal of 20310010301231 is 13210301001302.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-20310010301231 is a prime.

It is a super-2 number, since 2×203100103012312 (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 (20310010301201) 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, 287165885 + ... + 287236601.

It is an arithmetic number, because the mean of its divisors is an integer number (1451254287780).

Almost surely, 220310010301231 is an apocalyptic number.

20310010301231 is a deficient number, since it is larger than the sum of its proper divisors (2910058303249).

20310010301231 is a wasteful number, since it uses less digits than its factorization.

20310010301231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85394.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 20310010301231 its reverse (13210301001302), we get a palindrome (33520311302533).

The spelling of 20310010301231 in words is "twenty trillion, three hundred ten billion, ten million, three hundred one thousand, two hundred thirty-one".

Divisors: 1 7 3761 10909 26327 70717 76363 495019 41028749 265966637 287201243 771451753 1861766459 5400162271 2901430043033 20310010301231