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1231223010330 = 235192160040369
BaseRepresentation
bin10001111010101010100…
…111000011010000011010
311100201000001022101010110
4101322222213003100122
5130133021042312310
62341341022025150
7154644565624455
oct21725247032032
94321001271113
101231223010330
11435182322965
1217a7521181b6
138c14716c951
144383d17249c
1522060d97d20
hex11eaa9c341a

1231223010330 has 32 divisors (see below), whose sum is σ = 3110458132800. Its totient is φ = 311045812992.

The previous prime is 1231223010323. The next prime is 1231223010343. The reversal of 1231223010330 is 330103221321.

It is a junction number, because it is equal to n+sod(n) for n = 1231223010297 and 1231223010306.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1080019615 + ... + 1080020754.

It is an arithmetic number, because the mean of its divisors is an integer number (97201816650).

Almost surely, 21231223010330 is an apocalyptic number.

1231223010330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1231223010330 is an abundant number, since it is smaller than the sum of its proper divisors (1879235122470).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1231223010330 is a wasteful number, since it uses less digits than its factorization.

1231223010330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2160040398.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 1231223010330 its reverse (330103221321), we get a palindrome (1561326231651).

The spelling of 1231223010330 in words is "one trillion, two hundred thirty-one billion, two hundred twenty-three million, ten thousand, three hundred thirty".

Divisors: 1 2 3 5 6 10 15 19 30 38 57 95 114 190 285 570 2160040369 4320080738 6480121107 10800201845 12960242214 21600403690 32400605535 41040767011 64801211070 82081534022 123122301033 205203835055 246244602066 410407670110 615611505165 1231223010330