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1323124121 = 11711694141
BaseRepresentation
bin100111011011101…
…0100010110011001
310102012200200002002
41032313110112121
510202204432441
6335143050345
744534240504
oct11667242631
93365620062
101323124121
11619961810
1230b1409b5
131811733a7
14c7a2013b
157b25bb9b
hex4edd4599

1323124121 has 8 divisors (see below), whose sum is σ = 1463738688. Its totient is φ = 1185898000.

The previous prime is 1323124097. The next prime is 1323124123. The reversal of 1323124121 is 1214213231.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1323124121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1323124093 and 1323124102.

It is not an unprimeable number, because it can be changed into a prime (1323124123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 846290 + ... + 847851.

It is an arithmetic number, because the mean of its divisors is an integer number (182967336).

Almost surely, 21323124121 is an apocalyptic number.

1323124121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1323124121 is a deficient number, since it is larger than the sum of its proper divisors (140614567).

1323124121 is a wasteful number, since it uses less digits than its factorization.

1323124121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1694223.

The product of its digits is 288, while the sum is 20.

The square root of 1323124121 is about 36374.7731401860. The cubic root of 1323124121 is about 1097.8260427485.

Adding to 1323124121 its reverse (1214213231), we get a palindrome (2537337352).

The spelling of 1323124121 in words is "one billion, three hundred twenty-three million, one hundred twenty-four thousand, one hundred twenty-one".

Divisors: 1 11 71 781 1694141 18635551 120284011 1323124121