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12101023203101 = 71728717600443
BaseRepresentation
bin1011000000010111110100…
…1100000111111100011101
31120211211212010001112211022
42300011331030013330131
53041230343414444401
641423044443533525
72356161431041310
oct260057514077435
946754763045738
1012101023203101
1139460191415a8
12143531422a2a5
1369a1771a1841
142db99a8aa977
1515eb96dc171b
hexb017d307f1d

12101023203101 has 4 divisors (see below), whose sum is σ = 13829740803552. Its totient is φ = 10372305602652.

The previous prime is 12101023203097. The next prime is 12101023203109. The reversal of 12101023203101 is 10130232010121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 12101023203101 - 22 = 12101023203097 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12101023203101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12101023203109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 864358800215 + ... + 864358800228.

It is an arithmetic number, because the mean of its divisors is an integer number (3457435200888).

Almost surely, 212101023203101 is an apocalyptic number.

It is an amenable number.

12101023203101 is a deficient number, since it is larger than the sum of its proper divisors (1728717600451).

12101023203101 is an equidigital number, since it uses as much as digits as its factorization.

12101023203101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1728717600450.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 12101023203101 its reverse (10130232010121), we get a palindrome (22231255213222).

The spelling of 12101023203101 in words is "twelve trillion, one hundred one billion, twenty-three million, two hundred three thousand, one hundred one".

Divisors: 1 7 1728717600443 12101023203101