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131203000012 = 22717327085673
BaseRepresentation
bin111101000110001001…
…1101110011011001100
3110112122202120222101211
41322030103232123030
54122200432000022
6140135051344204
712323222046010
oct1721423563314
9415582528354
10131203000012
1150708744917
1221517752064
13c4ac1a9666
1464c917a540
15362d792e77
hex1e8c4ee6cc

131203000012 has 24 divisors (see below), whose sum is σ = 263922807456. Its totient is φ = 55904827008.

The previous prime is 131202999973. The next prime is 131203000057. The reversal of 131203000012 is 210000302131.

It is a junction number, because it is equal to n+sod(n) for n = 131202999956 and 131203000001.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13537993 + ... + 13547680.

It is an arithmetic number, because the mean of its divisors is an integer number (10996783644).

Almost surely, 2131203000012 is an apocalyptic number.

It is an amenable number.

131203000012 is an abundant number, since it is smaller than the sum of its proper divisors (132719807444).

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

131203000012 is a wasteful number, since it uses less digits than its factorization.

131203000012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27085857 (or 27085855 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 131203000012 its reverse (210000302131), we get a palindrome (341203302143).

The spelling of 131203000012 in words is "one hundred thirty-one billion, two hundred three million, twelve", and thus it is an aban number.

Divisors: 1 2 4 7 14 28 173 346 692 1211 2422 4844 27085673 54171346 108342692 189599711 379199422 758398844 4685821429 9371642858 18743285716 32800750003 65601500006 131203000012