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1001202102101 = 19378941159287
BaseRepresentation
bin11101001000111000100…
…10111010111101010101
310112201021111101112120002
432210130102322331111
5112400430214231401
62043540151421045
7132222502310615
oct16443422727525
93481244345502
101001202102101
11356675538003
12142058684785
137354a347a66
143665bd62a45
151b09c069a6b
hexe91c4baf55

1001202102101 has 16 divisors (see below), whose sum is σ = 1082508504960. Its totient is φ = 922762912320.

The previous prime is 1001202102091. The next prime is 1001202102133. The reversal of 1001202102101 is 1012012021001.

It is a cyclic number.

It is not a de Polignac number, because 1001202102101 - 230 = 1000128360277 is a prime.

It is a super-2 number, since 2×10012021021012 (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001202102161) 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, 6205880 + ... + 6365166.

It is an arithmetic number, because the mean of its divisors is an integer number (67656781560).

Almost surely, 21001202102101 is an apocalyptic number.

It is an amenable number.

1001202102101 is a deficient number, since it is larger than the sum of its proper divisors (81306402859).

1001202102101 is a wasteful number, since it uses less digits than its factorization.

1001202102101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168284.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 1001202102101 its reverse (1012012021001), we get a palindrome (2013214123102).

The spelling of 1001202102101 in words is "one trillion, one billion, two hundred two million, one hundred two thousand, one hundred one".

Divisors: 1 19 37 703 8941 159287 169879 330817 3026453 5893619 6285523 111978761 1424185067 27059516273 52694847479 1001202102101