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12142110161631 = 310464973867541
BaseRepresentation
bin1011000010110000111000…
…1010011011101011011111
31120222202220112102022010010
42300230032022123223133
53042414020200133011
641454001452014303
72362144544320362
oct260541612335337
946882815368103
1012142110161631
11396149270767a
121441280161393
136a0cc44b9a18
142dd9775800d9
15160c9e0151a6
hexb0b0e29badf

12142110161631 has 8 divisors (see below), whose sum is σ = 16189499871664. Its totient is φ = 8094730279680.

The previous prime is 12142110161539. The next prime is 12142110161639. The reversal of 12142110161631 is 13616101124121.

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

It is not a de Polignac number, because 12142110161631 - 241 = 9943086906079 is a prime.

It is a super-2 number, since 2×121421101616312 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12142110161639) 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, 1205721 + ... + 5073261.

It is an arithmetic number, because the mean of its divisors is an integer number (2023687483958).

Almost surely, 212142110161631 is an apocalyptic number.

12142110161631 is a deficient number, since it is larger than the sum of its proper divisors (4047389710033).

12142110161631 is a wasteful number, since it uses less digits than its factorization.

12142110161631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4914041.

The product of its (nonzero) digits is 1728, while the sum is 30.

Adding to 12142110161631 its reverse (13616101124121), we get a palindrome (25758211285752).

The spelling of 12142110161631 in words is "twelve trillion, one hundred forty-two billion, one hundred ten million, one hundred sixty-one thousand, six hundred thirty-one".

Divisors: 1 3 1046497 3139491 3867541 11602623 4047370053877 12142110161631