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21233131200101 = 171439867969227
BaseRepresentation
bin1001101001111101110010…
…01111100001111001100101
32210011212102102100222001102
410310332321033201321211
510240340423041400401
6113054211003205445
74321020533206022
oct464767117417145
983155372328042
1021233131200101
116846a1401a137
12246b158816885
13bb0377893b52
145359909ca549
1526c4c850856b
hex134fb93e1e65

21233131200101 has 8 divisors (see below), whose sum is σ = 22497762389760. Its totient is φ = 19970235951808.

The previous prime is 21233131200031. The next prime is 21233131200137. The reversal of 21233131200101 is 10100213133212.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-21233131200101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21233131200161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 433960151 + ... + 434009076.

It is an arithmetic number, because the mean of its divisors is an integer number (2812220298720).

Almost surely, 221233131200101 is an apocalyptic number.

It is an amenable number.

21233131200101 is a deficient number, since it is larger than the sum of its proper divisors (1264631189659).

21233131200101 is a wasteful number, since it uses less digits than its factorization.

21233131200101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 867970683.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 21233131200101 its reverse (10100213133212), we get a palindrome (31333344333313).

The spelling of 21233131200101 in words is "twenty-one trillion, two hundred thirty-three billion, one hundred thirty-one million, two hundred thousand, one hundred one".

Divisors: 1 17 1439 24463 867969227 14755476859 1249007717653 21233131200101