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21101130130101 = 371459871379043
BaseRepresentation
bin1001100110000111111010…
…10111011010001010110101
32202201020201001001211102220
410303003331113122022311
510231210103303130401
6112513420402152553
74305335450502240
oct463037527321265
982636631054386
1021101130130101
1167a5a3694254a
122449659952759
13ba0a9c25bc38
1452d42b868257
15268d4eb70336
hex1330fd5da2b5

21101130130101 has 32 divisors (see below), whose sum is σ = 32180241515520. Its totient is φ = 12047988864384.

The previous prime is 21101130130079. The next prime is 21101130130103. The reversal of 21101130130101 is 10103103110112.

It is not a de Polignac number, because 21101130130101 - 214 = 21101130113717 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21101130130103) 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, 266918086 + ... + 266997128.

It is an arithmetic number, because the mean of its divisors is an integer number (1005632547360).

Almost surely, 221101130130101 is an apocalyptic number.

21101130130101 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

21101130130101 is a deficient number, since it is larger than the sum of its proper divisors (11079111385419).

21101130130101 is a wasteful number, since it uses less digits than its factorization.

21101130130101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89225.

The product of its (nonzero) digits is 18, while the sum is 15.

Adding to 21101130130101 its reverse (10103103110112), we get a palindrome (31204233240213).

The spelling of 21101130130101 in words is "twenty-one trillion, one hundred one billion, one hundred thirty million, one hundred thirty thousand, one hundred one".

Divisors: 1 3 7 21 1459 4377 8713 10213 26139 30639 60991 79043 182973 237129 553301 1659903 12712267 38136801 88985869 115323737 266957607 345971211 688701659 807266159 2066104977 2421798477 4820911613 14462734839 1004815720481 3014447161443 7033710043367 21101130130101