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100111201010101 = 193110112771317817
BaseRepresentation
bin10110110000110011110100…
…100100110000000110110101
3111010110112111201122010210101
4112300303310210300012311
5101110210214424310401
6552530241214154101
730041536613136001
oct2660636444600665
9433415451563711
10100111201010101
1129997a16092a16
12b28a27a7b2931
1343b25a43cbcc8
141aa159d709701
15b891c7052101
hex5b0cf49301b5

100111201010101 has 32 divisors (see below), whose sum is σ = 109942709253120. Its totient is φ = 90802793664000.

The previous prime is 100111201010027. The next prime is 100111201010131. The reversal of 100111201010101 is 101010102111001.

It is a cyclic number.

It is not a de Polignac number, because 100111201010101 - 235 = 100076841271733 is a prime.

It is a Duffinian number.

100111201010101 is a modest number, since divided by 1010101 gives 1001112 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100111201010131) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 75308545 + ... + 76626361.

It is an arithmetic number, because the mean of its divisors is an integer number (3435709664160).

Almost surely, 2100111201010101 is an apocalyptic number.

It is an amenable number.

100111201010101 is a deficient number, since it is larger than the sum of its proper divisors (9831508243019).

100111201010101 is a wasteful number, since it uses less digits than its factorization.

100111201010101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1319245.

The product of its (nonzero) digits is 2, while the sum is 10.

Adding to 100111201010101 its reverse (101010102111001), we get a palindrome (201121303121102).

The spelling of 100111201010101 in words is "one hundred trillion, one hundred eleven billion, two hundred one million, ten thousand, one hundred one".

Divisors: 1 19 31 101 589 1277 1919 3131 24263 39587 59489 128977 752153 1317817 2450563 3998287 25038523 40852327 75967453 133099517 776194213 1682852309 2528890823 4126085027 31974193871 52168421579 78395615513 169968083209 991200010001 3229393580971 5269010579479 100111201010101