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1021011111006 = 231743232788671
BaseRepresentation
bin11101101101110010000…
…00010010110001011110
310121121102000112110021120
432312321000102301132
5113212012321023011
62101013535311410
7133523415151305
oct16667100226136
93547360473246
101021011111006
11364010177647
12145a6667b566
13753862a0ac3
14375bab2d43c
151b85b15aa06
hexedb9012c5e

1021011111006 has 32 divisors (see below), whose sum is σ = 2212423538688. Its totient is φ = 312867972480.

The previous prime is 1021011110983. The next prime is 1021011111007. The reversal of 1021011111006 is 6001111101201.

1021011111006 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021011111007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 116389950 + ... + 116398721.

It is an arithmetic number, because the mean of its divisors is an integer number (69138235584).

Almost surely, 21021011111006 is an apocalyptic number.

1021011111006 is an abundant number, since it is smaller than the sum of its proper divisors (1191412427682).

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

1021011111006 is a wasteful number, since it uses less digits than its factorization.

1021011111006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232788736.

The product of its (nonzero) digits is 12, while the sum is 15.

Adding to 1021011111006 its reverse (6001111101201), we get a palindrome (7022122212207).

The spelling of 1021011111006 in words is "one trillion, twenty-one billion, eleven million, one hundred eleven thousand, six".

Divisors: 1 2 3 6 17 34 43 51 86 102 129 258 731 1462 2193 4386 232788671 465577342 698366013 1396732026 3957407407 7914814814 10009912853 11872222221 20019825706 23744444442 30029738559 60059477118 170168518501 340337037002 510505555503 1021011111006