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10131220303 = 13972886477
BaseRepresentation
bin10010110111101111…
…00010011101001111
3222011001200022112121
421123313202131033
5131222043022203
64353151113411
7506026644301
oct113367423517
928131608477
1010131220303
11432989a846
121b68b12867
13c55c42519
146c175d971
153e467d0bd
hex25bde274f

10131220303 has 4 divisors (see below), whose sum is σ = 10204106920. Its totient is φ = 10058333688.

The previous prime is 10131220289. The next prime is 10131220349. The reversal of 10131220303 is 30302213101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30302213101 = 71597423233.

It is a cyclic number.

It is not a de Polignac number, because 10131220303 - 25 = 10131220271 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 (10131220103) 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, 36443100 + ... + 36443377.

It is an arithmetic number, because the mean of its divisors is an integer number (2551026730).

Almost surely, 210131220303 is an apocalyptic number.

10131220303 is a deficient number, since it is larger than the sum of its proper divisors (72886617).

10131220303 is an equidigital number, since it uses as much as digits as its factorization.

10131220303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72886616.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 10131220303 its reverse (30302213101), we get a palindrome (40433433404).

The spelling of 10131220303 in words is "ten billion, one hundred thirty-one million, two hundred twenty thousand, three hundred three".

Divisors: 1 139 72886477 10131220303