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12102455512051 = 18896406805459
BaseRepresentation
bin1011000000011101001010…
…0011111100101111110011
31120211222112221012101022221
42300013102203330233303
53041241312102341201
641423442531141511
72356242062340202
oct260072243745763
946758487171287
1012102455512051
113946693698503
121435653a44897
1369a344b53228
142dba94bcd239
1515ec2c9e94a1
hexb01d28fcbf3

12102455512051 has 4 divisors (see below), whose sum is σ = 12108862319400. Its totient is φ = 12096048704704.

The previous prime is 12102455512033. The next prime is 12102455512087. The reversal of 12102455512051 is 15021555420121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12102455512051 - 25 = 12102455512019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12102455511998 and 12102455512016.

It is not an unprimeable number, because it can be changed into a prime (12102455512451) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3203400841 + ... + 3203404618.

It is an arithmetic number, because the mean of its divisors is an integer number (3027215579850).

Almost surely, 212102455512051 is an apocalyptic number.

12102455512051 is a deficient number, since it is larger than the sum of its proper divisors (6406807349).

12102455512051 is an equidigital number, since it uses as much as digits as its factorization.

12102455512051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6406807348.

The product of its (nonzero) digits is 20000, while the sum is 34.

The spelling of 12102455512051 in words is "twelve trillion, one hundred two billion, four hundred fifty-five million, five hundred twelve thousand, fifty-one".

Divisors: 1 1889 6406805459 12102455512051