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13231322303 = 61233930931
BaseRepresentation
bin11000101001010010…
…11111010010111111
31021011010001211000012
430110221133102333
5204044204303203
610024533053435
7645612245453
oct142451372277
937133054005
1013231322303
11567a811311
12269318727b
13132b2a4ac4
148d7382663
155268e6bd8
hex314a5f4bf

13231322303 has 8 divisors (see below), whose sum is σ = 13505961456. Its totient is φ = 12958545600.

The previous prime is 13231322249. The next prime is 13231322311. The reversal of 13231322303 is 30322313231.

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 13231322303 - 222 = 13227127999 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 (13231322383) 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, 451253 + ... + 479678.

It is an arithmetic number, because the mean of its divisors is an integer number (1688245182).

Almost surely, 213231322303 is an apocalyptic number.

13231322303 is a deficient number, since it is larger than the sum of its proper divisors (274639153).

13231322303 is an equidigital number, since it uses as much as digits as its factorization.

13231322303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 931225.

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 13231322303 its reverse (30322313231), we get a palindrome (43553635534).

The spelling of 13231322303 in words is "thirteen billion, two hundred thirty-one million, three hundred twenty-two thousand, three hundred three".

Divisors: 1 61 233 14213 930931 56786791 216906923 13231322303