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10203123231211 = 172920695990327
BaseRepresentation
bin1001010001111001100110…
…0010010010100111101011
31100010102001012102112002211
42110132121202102213223
52314131444021344321
633411130004505551
72102102622333541
oct224363142224753
940112035375084
1010203123231211
113284136084039
1211895253ab2b7
135901c55477b1
14273b95d33d91
1512a61769e0e1
hex947998929eb

10203123231211 has 8 divisors (see below), whose sum is σ = 11175834777120. Its totient is φ = 9271803666048.

The previous prime is 10203123231209. The next prime is 10203123231221. The reversal of 10203123231211 is 11213232130201.

10203123231211 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 10203123231211 - 21 = 10203123231209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10203123231221) 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, 10347994671 + ... + 10347995656.

It is an arithmetic number, because the mean of its divisors is an integer number (1396979347140).

Almost surely, 210203123231211 is an apocalyptic number.

10203123231211 is a deficient number, since it is larger than the sum of its proper divisors (972711545909).

10203123231211 is a wasteful number, since it uses less digits than its factorization.

10203123231211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20695990373.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 10203123231211 its reverse (11213232130201), we get a palindrome (21416355361412).

The spelling of 10203123231211 in words is "ten trillion, two hundred three billion, one hundred twenty-three million, two hundred thirty-one thousand, two hundred eleven".

Divisors: 1 17 29 493 20695990327 351831835559 600183719483 10203123231211