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10203012323 = 71457573189
BaseRepresentation
bin10011000000010010…
…11001110011100011
3222100001202201200022
421200021121303203
5131343432343243
64404233544055
7510561113420
oct114011316343
928301681608
1010203012323
114366375199
121b88b7502b
13c67a8a8ca
146cb0cad47
153eab0eb68
hex260259ce3

10203012323 has 4 divisors (see below), whose sum is σ = 11660585520. Its totient is φ = 8745439128.

The previous prime is 10203012311. The next prime is 10203012371. The reversal of 10203012323 is 32321030201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32321030201 = 167193539103.

It is a cyclic number.

It is not a de Polignac number, because 10203012323 - 24 = 10203012307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10203012373) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 728786588 + ... + 728786601.

It is an arithmetic number, because the mean of its divisors is an integer number (2915146380).

Almost surely, 210203012323 is an apocalyptic number.

10203012323 is a deficient number, since it is larger than the sum of its proper divisors (1457573197).

10203012323 is an equidigital number, since it uses as much as digits as its factorization.

10203012323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1457573196.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 10203012323 its reverse (32321030201), we get a palindrome (42524042524).

The spelling of 10203012323 in words is "ten billion, two hundred three million, twelve thousand, three hundred twenty-three".

Divisors: 1 7 1457573189 10203012323