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231320023000001 = 1317793847923077
BaseRepresentation
bin110100100110001001100011…
…110011001110001111000001
31010100000222102010111001121022
4310212021203303032033001
5220304421401342000001
62135550541310435225
766503214545254625
oct6446114363161701
91110028363431538
10231320023000001
11677842a8534881
1221b3b453802b15
139c0c4ccb93c50
144119d3d90b185
151bb2270a4e11b
hexd26263cce3c1

231320023000001 has 4 divisors (see below), whose sum is σ = 249113870923092. Its totient is φ = 213526175076912.

The previous prime is 231320022999991. The next prime is 231320023000009. The reversal of 231320023000001 is 100000320023132.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 37965018803776 + 193355004196225 = 6161576^2 + 13905215^2 .

It is a cyclic number.

It is not a de Polignac number, because 231320023000001 - 218 = 231320022737857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231320023000009) 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, 8896923961526 + ... + 8896923961551.

It is an arithmetic number, because the mean of its divisors is an integer number (62278467730773).

Almost surely, 2231320023000001 is an apocalyptic number.

It is an amenable number.

231320023000001 is a deficient number, since it is larger than the sum of its proper divisors (17793847923091).

231320023000001 is a wasteful number, since it uses less digits than its factorization.

231320023000001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17793847923090.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 231320023000001 its reverse (100000320023132), we get a palindrome (331320343023133).

The spelling of 231320023000001 in words is "two hundred thirty-one trillion, three hundred twenty billion, twenty-three million, one", and thus it is an aban number.

Divisors: 1 13 17793847923077 231320023000001