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13143123203320 = 23511261672272927
BaseRepresentation
bin1011111101000001111100…
…1100001001010011111000
31201112110200212001120112201
42333100133030021103320
53210314104020001240
643541511211315544
72524362562635625
oct277203714112370
951473625046481
1013143123203320
114207a70453800
12158328544bbb4
1374451160a8c6
143361b836b34c
1517bd39686d9a
hexbf41f3094f8

13143123203320 has 384 divisors, whose sum is σ = 33689973703680. Its totient is φ = 4608829209600.

The previous prime is 13143123203207. The next prime is 13143123203323. The reversal of 13143123203320 is 2330232134131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13143123203323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 4490303697 + ... + 4490306623.

It is an arithmetic number, because the mean of its divisors is an integer number (87734306520).

Almost surely, 213143123203320 is an apocalyptic number.

13143123203320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13143123203320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16844986851840).

13143123203320 is an abundant number, since it is smaller than the sum of its proper divisors (20546850500360).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13143123203320 is a wasteful number, since it uses less digits than its factorization.

13143123203320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3315 (or 3300 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 28.

Adding to 13143123203320 its reverse (2330232134131), we get a palindrome (15473355337451).

The spelling of 13143123203320 in words is "thirteen trillion, one hundred forty-three billion, one hundred twenty-three million, two hundred three thousand, three hundred twenty".