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231211013020223 = 17113120359715263
BaseRepresentation
bin110100100100100100000010…
…010011001001101000111111
31010022122120001000222022122212
4310210210002103021220333
5220301130123313121343
62135424512324331035
766462305304601535
oct6444440223115077
91108576030868585
10231211013020223
11677420492115a5
1221b222b0543a7b
139c0214981b932
14411495bdd8155
151bae4e0815c18
hexd249024c9a3f

231211013020223 has 8 divisors (see below), whose sum is σ = 246978135721728. Its totient is φ = 215684609749504.

The previous prime is 231211013020177. The next prime is 231211013020261. The reversal of 231211013020223 is 322020310112132.

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-231211013020223 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231211013020423) 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, 60179855711 + ... + 60179859552.

It is an arithmetic number, because the mean of its divisors is an integer number (30872266965216).

Almost surely, 2231211013020223 is an apocalyptic number.

231211013020223 is a deficient number, since it is larger than the sum of its proper divisors (15767122701505).

231211013020223 is a wasteful number, since it uses less digits than its factorization.

231211013020223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120359715393.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 231211013020223 its reverse (322020310112132), we get a palindrome (553231323132355).

The spelling of 231211013020223 in words is "two hundred thirty-one trillion, two hundred eleven billion, thirteen million, twenty thousand, two hundred twenty-three".

Divisors: 1 17 113 1921 120359715263 2046115159471 13600647824719 231211013020223