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1212120303223 = 4361462112201
BaseRepresentation
bin10001101000111000000…
…000000000011001110111
311021212200202012022022211
4101220320000000121313
5124324410244200343
62324501304434251
7153400320403024
oct21507000003167
94255622168284
101212120303223
1142806a347315
12176b00778987
138a3c165146b
144294a10054b
15217e3cc179d
hex11a38000677

1212120303223 has 8 divisors (see below), whose sum is σ = 1260642087056. Its totient is φ = 1164522744000.

The previous prime is 1212120303209. The next prime is 1212120303301. The reversal of 1212120303223 is 3223030212121.

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 1212120303223 - 233 = 1203530368631 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1212120303194 and 1212120303203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212120304223) 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, 231053478 + ... + 231058723.

It is an arithmetic number, because the mean of its divisors is an integer number (157580260882).

Almost surely, 21212120303223 is an apocalyptic number.

1212120303223 is a deficient number, since it is larger than the sum of its proper divisors (48521783833).

1212120303223 is an equidigital number, since it uses as much as digits as its factorization.

1212120303223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 462112305.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 1212120303223 its reverse (3223030212121), we get a palindrome (4435150515344).

The spelling of 1212120303223 in words is "one trillion, two hundred twelve billion, one hundred twenty million, three hundred three thousand, two hundred twenty-three".

Divisors: 1 43 61 2623 462112201 19870824643 28188844261 1212120303223