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12131011003 = 233591469179
BaseRepresentation
bin10110100110001000…
…01000100110111011
31011022102122012122211
423103010020212323
5144321014323003
65323425355551
7606421615006
oct132304104673
934272565584
1012131011003
115165704131
122426798bb7
1311b4345527
148311a253d
154aeeed96d
hex2d31089bb

12131011003 has 8 divisors (see below), whose sum is σ = 12693715200. Its totient is φ = 11571245928.

The previous prime is 12131011001. The next prime is 12131011007. The reversal of 12131011003 is 30011013121.

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 12131011003 - 21 = 12131011001 is a prime.

It is a super-2 number, since 2×121310110032 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12131011001) 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, 726333 + ... + 742846.

It is an arithmetic number, because the mean of its divisors is an integer number (1586714400).

Almost surely, 212131011003 is an apocalyptic number.

12131011003 is a deficient number, since it is larger than the sum of its proper divisors (562704197).

12131011003 is a wasteful number, since it uses less digits than its factorization.

12131011003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1469561.

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 12131011003 its reverse (30011013121), we get a palindrome (42142024124).

The spelling of 12131011003 in words is "twelve billion, one hundred thirty-one million, eleven thousand, three".

Divisors: 1 23 359 8257 1469179 33791117 527435261 12131011003