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21100223210313 = 3132313491338453
BaseRepresentation
bin1001100110000110001110…
…10011110010001101001001
32202201011100211112112101010
410303003013103302031021
510231201224120212223
6112513150403514133
74305304126013232
oct463030723621511
982634324475333
1021100223210313
1167a5610a14265
122449446088949
13ba09863b1a00
1452d38322a089
15268cea228393
hex1330c74f2349

21100223210313 has 48 divisors (see below), whose sum is σ = 31448663161344. Its totient is φ = 12565203056640.

The previous prime is 21100223210267. The next prime is 21100223210323. The reversal of 21100223210313 is 31301232200112.

It is not a de Polignac number, because 21100223210313 - 29 = 21100223209801 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 21100223210313.

It is not an unprimeable number, because it can be changed into a prime (21100223210323) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 548708395 + ... + 548746847.

It is an arithmetic number, because the mean of its divisors is an integer number (655180482528).

Almost surely, 221100223210313 is an apocalyptic number.

It is an amenable number.

21100223210313 is a deficient number, since it is larger than the sum of its proper divisors (10348439951031).

21100223210313 is a wasteful number, since it uses less digits than its factorization.

21100223210313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73426 (or 73413 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 21100223210313 its reverse (31301232200112), we get a palindrome (52401455410425).

The spelling of 21100223210313 in words is "twenty-one trillion, one hundred billion, two hundred twenty-three million, two hundred ten thousand, three hundred thirteen".

Divisors: 1 3 13 31 39 93 169 403 507 1209 5239 15717 34913 38453 104739 115359 453869 499889 1082303 1192043 1361607 1499667 3246909 3576129 5900297 6498557 14069939 15496559 17700891 19495671 42209817 46489677 182909207 201455267 548727621 604365801 1342509589 4027528767 17452624657 41617797259 52357873971 124853391777 226884120541 541031364367 680652361623 1623094093101 7033407736771 21100223210313