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1231323013301 = 23220747242521
BaseRepresentation
bin10001111010110000100…
…100100010000010110101
311100201021000111001102012
4101322300210202002311
5130133222142411201
62341354553254005
7154650221631353
oct21726044420265
94321230431365
101231323013301
11435223816647
1217a77b704305
138c161ab48c4
144384c5647d3
1522069a4d5bb
hex11eb09220b5

1231323013301 has 8 divisors (see below), whose sum is σ = 1284869914944. Its totient is φ = 1177777038240.

The previous prime is 1231323013289. The next prime is 1231323013367. The reversal of 1231323013301 is 1033103231321.

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 1231323013301 - 230 = 1230249271477 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231323813301) 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, 4955921 + ... + 5198441.

It is an arithmetic number, because the mean of its divisors is an integer number (160608739368).

Almost surely, 21231323013301 is an apocalyptic number.

It is an amenable number.

1231323013301 is a deficient number, since it is larger than the sum of its proper divisors (53546901643).

1231323013301 is a wasteful number, since it uses less digits than its factorization.

1231323013301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 463291.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 1231323013301 its reverse (1033103231321), we get a palindrome (2264426244622).

The spelling of 1231323013301 in words is "one trillion, two hundred thirty-one billion, three hundred twenty-three million, thirteen thousand, three hundred one".

Divisors: 1 23 220747 242521 5077181 5577983 53535783187 1231323013301