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1020111311288 = 23278945720299
BaseRepresentation
bin11101101100000110101…
…11110101000110111000
310121112002022101220010002
432312003113311012320
5113203141443430123
62100344353412132
7133462211035436
oct16660327650670
93545068356102
101020111311288
11363699271813
1214585526a048
1375271a47634
1437533425d56
151b80716d528
hexed835f51b8

1020111311288 has 16 divisors (see below), whose sum is σ = 1913394555000. Its totient is φ = 509872763296.

The previous prime is 1020111311287. The next prime is 1020111311321. The reversal of 1020111311288 is 8821131110201.

It is a self number, because there is not a number n which added to its sum of digits gives 1020111311288.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020111311287) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22837838 + ... + 22882461.

Almost surely, 21020111311288 is an apocalyptic number.

It is an amenable number.

1020111311288 is a deficient number, since it is larger than the sum of its proper divisors (893283243712).

1020111311288 is a wasteful number, since it uses less digits than its factorization.

1020111311288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45723094 (or 45723090 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 29.

Adding to 1020111311288 its reverse (8821131110201), we get a palindrome (9841242421489).

The spelling of 1020111311288 in words is "one trillion, twenty billion, one hundred eleven million, three hundred eleven thousand, two hundred eighty-eight".

Divisors: 1 2 4 8 2789 5578 11156 22312 45720299 91440598 182881196 365762392 127513913911 255027827822 510055655644 1020111311288