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103323131221 = 2233791222513
BaseRepresentation
bin110000000111010001…
…0011101110101010101
3100212200202200220021211
41200032202131311111
53143101210144341
6115244353141421
710315305060502
oct1401642356525
9325622626254
10103323131221
113a901239842
121803685a871
13998813048b
14500253c4a9
152a4ad5b181
hex180e89dd55

103323131221 has 8 divisors (see below), whose sum is σ = 104060391680. Its totient is φ = 102588316992.

The previous prime is 103323131167. The next prime is 103323131237. The reversal of 103323131221 is 122131323301.

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-103323131221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 103323131192 and 103323131201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103323131921) 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, 526740 + ... + 695773.

It is an arithmetic number, because the mean of its divisors is an integer number (13007548960).

Almost surely, 2103323131221 is an apocalyptic number.

It is an amenable number.

103323131221 is a deficient number, since it is larger than the sum of its proper divisors (737260459).

103323131221 is a wasteful number, since it uses less digits than its factorization.

103323131221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1223115.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 103323131221 its reverse (122131323301), we get a palindrome (225454454522).

The spelling of 103323131221 in words is "one hundred three billion, three hundred twenty-three million, one hundred thirty-one thousand, two hundred twenty-one".

Divisors: 1 223 379 84517 1222513 272620399 463332427 103323131221