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21100223210311 = 73458387161831
BaseRepresentation
bin1001100110000110001110…
…10011110010001101000111
32202201011100211112112101001
410303003013103302031013
510231201224120212221
6112513150403514131
74305304126013230
oct463030723621507
982634324475331
1021100223210311
1167a5610a14263
122449446088947
13ba09863b19cb
1452d38322a087
15268cea228391
hex1330c74f2347

21100223210311 has 8 divisors (see below), whose sum is σ = 24115238383104. Its totient is φ = 18085382430360.

The previous prime is 21100223210267. The next prime is 21100223210323. The reversal of 21100223210311 is 11301232200112.

Adding to 21100223210311 its reverse (11301232200112), we get a palindrome (32401455410423).

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

It is not a de Polignac number, because 21100223210311 - 213 = 21100223202119 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 (21100223310311) 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, 43338835 + ... + 43822996.

It is an arithmetic number, because the mean of its divisors is an integer number (3014404797888).

Almost surely, 221100223210311 is an apocalyptic number.

21100223210311 is a deficient number, since it is larger than the sum of its proper divisors (3015015172793).

21100223210311 is an equidigital number, since it uses as much as digits as its factorization.

21100223210311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87196421.

The product of its (nonzero) digits is 144, while the sum is 19.

The spelling of 21100223210311 in words is "twenty-one trillion, one hundred billion, two hundred twenty-three million, two hundred ten thousand, three hundred eleven".

Divisors: 1 7 34583 242081 87161831 610132817 3014317601473 21100223210311