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21130320301 = 47691165053
BaseRepresentation
bin10011101011011101…
…110001100110101101
32000112121102111012121
4103223131301212231
5321233330222201
613412424032541
71345425521236
oct235335614655
960477374177
1021130320301
118a63573432
124118602751
131cb991330c
14104647808d
1583a0e09a1
hex4eb7719ad

21130320301 has 8 divisors (see below), whose sum is σ = 21583355904. Its totient is φ = 20677428720.

The previous prime is 21130320283. The next prime is 21130320331. The reversal of 21130320301 is 10302303112.

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

It is a cyclic number.

It is not a de Polignac number, because 21130320301 - 223 = 21121931693 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 (21130320331) 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, 292291 + ... + 357343.

It is an arithmetic number, because the mean of its divisors is an integer number (2697919488).

Almost surely, 221130320301 is an apocalyptic number.

It is an amenable number.

21130320301 is a deficient number, since it is larger than the sum of its proper divisors (453035603).

21130320301 is an equidigital number, since it uses as much as digits as its factorization.

21130320301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72011.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 21130320301 its reverse (10302303112), we get a palindrome (31432623413).

The spelling of 21130320301 in words is "twenty-one billion, one hundred thirty million, three hundred twenty thousand, three hundred one".

Divisors: 1 47 6911 65053 324817 3057491 449581283 21130320301