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1212323124103 = 72131903176019
BaseRepresentation
bin10001101001000100000…
…101101101001110000111
311021220012212211200021021
4101221010011231032013
5124330314204432403
62324533351532011
7153405332346400
oct21510405551607
94256185750237
101212323124103
11428163886683
12176b5868a007
138a424685710
14429690189a7
15218069d68bd
hex11a4416d387

1212323124103 has 12 divisors (see below), whose sum is σ = 1518734463960. Its totient is φ = 959200713072.

The previous prime is 1212323124079. The next prime is 1212323124107. The reversal of 1212323124103 is 3014213232121.

It is not a de Polignac number, because 1212323124103 - 233 = 1203733189511 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212323124107) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 951587373 + ... + 951588646.

It is an arithmetic number, because the mean of its divisors is an integer number (126561205330).

Almost surely, 21212323124103 is an apocalyptic number.

1212323124103 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1212323124103 is a deficient number, since it is larger than the sum of its proper divisors (306411339857).

1212323124103 is a wasteful number, since it uses less digits than its factorization.

1212323124103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1903176046 (or 1903176039 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 1212323124103 its reverse (3014213232121), we get a palindrome (4226536356224).

The spelling of 1212323124103 in words is "one trillion, two hundred twelve billion, three hundred twenty-three million, one hundred twenty-four thousand, one hundred three".

Divisors: 1 7 13 49 91 637 1903176019 13322232133 24741288247 93255624931 173189017729 1212323124103