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1311030031222 = 21663394176197
BaseRepresentation
bin10011000100111111011…
…110101011001101110110
311122022222221022002120001
4103010333132223031312
5132434442141444342
62442140123301514
7163501355252662
oct23047736531566
94568887262501
101311030031222
1146600630197a
1219210537a89a
1396825308032
14476504358a2
15241824478b7
hex1313f7ab376

1311030031222 has 8 divisors (see below), whose sum is σ = 1967727580416. Its totient is φ = 655120837752.

The previous prime is 1311030031211. The next prime is 1311030031249. The reversal of 1311030031222 is 2221300301131.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1311030031222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 197084773 + ... + 197091424.

It is an arithmetic number, because the mean of its divisors is an integer number (245965947552).

Almost surely, 21311030031222 is an apocalyptic number.

1311030031222 is a deficient number, since it is larger than the sum of its proper divisors (656697549194).

1311030031222 is a wasteful number, since it uses less digits than its factorization.

1311030031222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394177862.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 1311030031222 its reverse (2221300301131), we get a palindrome (3532330332353).

The spelling of 1311030031222 in words is "one trillion, three hundred eleven billion, thirty million, thirty-one thousand, two hundred twenty-two".

Divisors: 1 2 1663 3326 394176197 788352394 655515015611 1311030031222