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20311123413041 = 1713147891904447
BaseRepresentation
bin1001001111001000011010…
…10010111100100000110001
32122220201120010001110111122
410213210031102330200301
510130234140043204131
6111110445024352025
74164300400265006
oct447441522744061
978821503043448
1020311123413041
11652099872517a
122340522175615
13b4443b78a546
145030c67d78ad
15253513d60d7b
hex12790d4bc831

20311123413041 has 16 divisors (see below), whose sum is σ = 21674598865920. Its totient is φ = 18966453891840.

The previous prime is 20311123413017. The next prime is 20311123413047. The reversal of 20311123413041 is 14031432111302.

It is a cyclic number.

It is not a de Polignac number, because 20311123413041 - 210 = 20311123412017 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20311123413041.

It is not an unprimeable number, because it can be changed into a prime (20311123413047) 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, 9712880 + ... + 11617326.

It is an arithmetic number, because the mean of its divisors is an integer number (1354662429120).

Almost surely, 220311123413041 is an apocalyptic number.

It is an amenable number.

20311123413041 is a deficient number, since it is larger than the sum of its proper divisors (1363475452879).

20311123413041 is a wasteful number, since it uses less digits than its factorization.

20311123413041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1909384.

The product of its (nonzero) digits is 1728, while the sum is 26.

Adding to 20311123413041 its reverse (14031432111302), we get a palindrome (34342555524343).

The spelling of 20311123413041 in words is "twenty trillion, three hundred eleven billion, one hundred twenty-three million, four hundred thirteen thousand, forty-one".

Divisors: 1 17 131 2227 4789 81413 627359 1904447 10665103 32375599 249482557 4241203469 9120396683 155046743611 1194771965473 20311123413041