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1213220323102 = 21275494755899
BaseRepresentation
bin10001101001111001100…
…100001111111100011110
311021222112102002002220211
4101221321210033330132
5124334133400314402
62325202402003034
7153436505411044
oct21517144177436
94258472062824
101213220323102
11428584275557
1217716904647a
138a53850b1b8
1442a12246394
152185a65d4d7
hex11a7990ff1e

1213220323102 has 8 divisors (see below), whose sum is σ = 1819845135000. Its totient is φ = 606605278104.

The previous prime is 1213220323097. The next prime is 1213220323163. The reversal of 1213220323102 is 2013230223121.

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 2122852 + ... + 2633047.

It is an arithmetic number, because the mean of its divisors is an integer number (227480641875).

Almost surely, 21213220323102 is an apocalyptic number.

1213220323102 is a deficient number, since it is larger than the sum of its proper divisors (606624811898).

1213220323102 is a wasteful number, since it uses less digits than its factorization.

1213220323102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4883450.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 1213220323102 its reverse (2013230223121), we get a palindrome (3226450546223).

The spelling of 1213220323102 in words is "one trillion, two hundred thirteen billion, two hundred twenty million, three hundred twenty-three thousand, one hundred two".

Divisors: 1 2 127549 255098 4755899 9511798 606610161551 1213220323102