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1210131312201 = 32719208433527
BaseRepresentation
bin10001100111000001011…
…100100110111001001001
311021200120010120002120200
4101213001130212321021
5124311322103442301
62323532053442413
7153300116302260
oct21470134467111
94250503502520
101210131312201
11427239639989
12176646640409
138a16555ccb6
14427dbcad5d7
1521729385c86
hex119c1726e49

1210131312201 has 12 divisors (see below), whose sum is σ = 1997677086912. Its totient is φ = 691503606936.

The previous prime is 1210131312163. The next prime is 1210131312209. The reversal of 1210131312201 is 1022131310121.

1210131312201 is a `hidden beast` number, since 1 + 21 + 0 + 131 + 312 + 201 = 666.

It is not a de Polignac number, because 1210131312201 - 213 = 1210131304009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1210131312209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9604216701 + ... + 9604216826.

It is an arithmetic number, because the mean of its divisors is an integer number (166473090576).

Almost surely, 21210131312201 is an apocalyptic number.

It is an amenable number.

1210131312201 is a deficient number, since it is larger than the sum of its proper divisors (787545774711).

1210131312201 is a wasteful number, since it uses less digits than its factorization.

1210131312201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19208433540 (or 19208433537 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 1210131312201 its reverse (1022131310121), we get a palindrome (2232262622322).

The spelling of 1210131312201 in words is "one trillion, two hundred ten billion, one hundred thirty-one million, three hundred twelve thousand, two hundred one".

Divisors: 1 3 7 9 21 63 19208433527 57625300581 134459034689 172875901743 403377104067 1210131312201