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10321222123 = 19242736691
BaseRepresentation
bin10011001110011000…
…10101100111101011
3222122022012102001001
421213030111213223
5132114213101443
64424055335431
7513524640412
oct114714254753
928568172031
1010321222123
114417073a43
122000681577
13c86408a34
146dca9c479
154061aed4d
hex2673159eb

10321222123 has 12 divisors (see below), whose sum is σ = 10897212648. Its totient is φ = 9774250560.

The previous prime is 10321222091. The next prime is 10321222151. The reversal of 10321222123 is 32122212301.

It is not a de Polignac number, because 10321222123 - 25 = 10321222091 is a prime.

It is a super-2 number, since 2×103212221232 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10321222123.

It is not an unprimeable number, because it can be changed into a prime (10321222523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1539208 + ... + 1545898.

It is an arithmetic number, because the mean of its divisors is an integer number (908101054).

Almost surely, 210321222123 is an apocalyptic number.

10321222123 is a deficient number, since it is larger than the sum of its proper divisors (575990525).

10321222123 is an equidigital number, since it uses as much as digits as its factorization.

10321222123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11002 (or 10983 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 10321222123 its reverse (32122212301), we get a palindrome (42443434424).

The spelling of 10321222123 in words is "ten billion, three hundred twenty-one million, two hundred twenty-two thousand, one hundred twenty-three".

Divisors: 1 19 361 4273 6691 81187 127129 1542553 2415451 28590643 543222217 10321222123