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131201130000421 = 1376603131749339
BaseRepresentation
bin11101110101001110100100…
…101111110111000000100101
3122012112201001100000100220201
4131311032210233313000211
5114144044403240003141
61143012544514230501
736430653211230415
oct3565164457670045
9565481040010821
10131201130000421
11388940a552a368
121286b7a8b85431
1358292a0cc5aa0
1424582507d4645
151027c98594031
hex7753a4bf7025

131201130000421 has 8 divisors (see below), whose sum is σ = 141295370179040. Its totient is φ = 121107153473712.

The previous prime is 131201130000379. The next prime is 131201130000439. The reversal of 131201130000421 is 124000031102131.

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 131201130000421 - 225 = 131201096445989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131201130000461) 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, 64878831 + ... + 66870508.

It is an arithmetic number, because the mean of its divisors is an integer number (17661921272380).

Almost surely, 2131201130000421 is an apocalyptic number.

It is an amenable number.

131201130000421 is a deficient number, since it is larger than the sum of its proper divisors (10094240178619).

131201130000421 is a wasteful number, since it uses less digits than its factorization.

131201130000421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131825955.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 131201130000421 its reverse (124000031102131), we get a palindrome (255201161102552).

The spelling of 131201130000421 in words is "one hundred thirty-one trillion, two hundred one billion, one hundred thirty million, four hundred twenty-one", and thus it is an aban number.

Divisors: 1 13 76603 995839 131749339 1712741407 10092394615417 131201130000421