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1231002230310 = 232513677802559
BaseRepresentation
bin10001111010011101011…
…100110101111000100110
311100200102122212120212200
4101322131130311320212
5130132043032332220
62341303053555330
7154636245212106
oct21723534657046
94320378776780
101231002230310
11435079737636
1217a6b01a5b46
138c1104bb198
144381bb01206
152204b7d6890
hex11e9d735e26

1231002230310 has 24 divisors (see below), whose sum is σ = 3200605799040. Its totient is φ = 328267261392.

The previous prime is 1231002230303. The next prime is 1231002230357. The reversal of 1231002230310 is 130322001321.

1231002230310 is a `hidden beast` number, since 1 + 23 + 100 + 2 + 230 + 310 = 666.

It is a super-2 number, since 2×12310022303102 (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 6838901190 + ... + 6838901369.

It is an arithmetic number, because the mean of its divisors is an integer number (133358574960).

Almost surely, 21231002230310 is an apocalyptic number.

1231002230310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1231002230310 is an abundant number, since it is smaller than the sum of its proper divisors (1969603568730).

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

1231002230310 is a wasteful number, since it uses less digits than its factorization.

1231002230310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13677802572 (or 13677802569 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 1231002230310 its reverse (130322001321), we get a palindrome (1361324231631).

The spelling of 1231002230310 in words is "one trillion, two hundred thirty-one billion, two million, two hundred thirty thousand, three hundred ten".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 13677802559 27355605118 41033407677 68389012795 82066815354 123100223031 136778025590 205167038385 246200446062 410334076770 615501115155 1231002230310