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13131103133220 = 22351271723241881
BaseRepresentation
bin1011111100010101001010…
…1111001101111000100100
31201111022200011011202012020
42333011102233031320210
53210114444400230340
643532202343423140
72523455656011522
oct277052257157044
951438604152166
1013131103133220
114202962434176
121580a8ba54ab0
13743347269aa7
14335797c07312
1517b88429e9d0
hexbf152bcde24

13131103133220 has 48 divisors (see below), whose sum is σ = 37056593430528. Its totient is φ = 3474055630080.

The previous prime is 13131103133201. The next prime is 13131103133233. The reversal of 13131103133220 is 2233130113131.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 861613321 + ... + 861628560.

It is an arithmetic number, because the mean of its divisors is an integer number (772012363136).

Almost surely, 213131103133220 is an apocalyptic number.

13131103133220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13131103133220 is an abundant number, since it is smaller than the sum of its proper divisors (23925490297308).

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

13131103133220 is a wasteful number, since it uses less digits than its factorization.

13131103133220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1723242020 (or 1723242018 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 24.

Adding to 13131103133220 its reverse (2233130113131), we get a palindrome (15364233246351).

The spelling of 13131103133220 in words is "thirteen trillion, one hundred thirty-one billion, one hundred three million, one hundred thirty-three thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 127 254 381 508 635 762 1270 1524 1905 2540 3810 7620 1723241881 3446483762 5169725643 6892967524 8616209405 10339451286 17232418810 20678902572 25848628215 34464837620 51697256430 103394512860 218851718887 437703437774 656555156661 875406875548 1094258594435 1313110313322 2188517188870 2626220626644 3282775783305 4377034377740 6565551566610 13131103133220