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131212013020403 = 7109171968562281
BaseRepresentation
bin11101110101011000101101…
…011011010010010011110011
3122012120202010210100001201212
4131311120231123102103303
5114144234200313123103
61143021544443150335
736431520000330560
oct3565305533222363
9565522123301655
10131212013020403
113889877a729357
12128719258153ab
13582a316912c93
1424589a3d33867
1510281d3c277d8
hex77562d6d24f3

131212013020403 has 8 divisors (see below), whose sum is σ = 151332334808160. Its totient is φ = 111435628357440.

The previous prime is 131212013020379. The next prime is 131212013020421. The reversal of 131212013020403 is 304020310212131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 131212013020403 - 26 = 131212013020339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131212013020493) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85984280378 + ... + 85984281903.

It is an arithmetic number, because the mean of its divisors is an integer number (18916541851020).

Almost surely, 2131212013020403 is an apocalyptic number.

131212013020403 is a deficient number, since it is larger than the sum of its proper divisors (20120321787757).

131212013020403 is a wasteful number, since it uses less digits than its factorization.

131212013020403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171968562397.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 131212013020403 its reverse (304020310212131), we get a palindrome (435232323232534).

The spelling of 131212013020403 in words is "one hundred thirty-one trillion, two hundred twelve billion, thirteen million, twenty thousand, four hundred three".

Divisors: 1 7 109 763 171968562281 1203779935967 18744573288629 131212013020403