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13133133031 = 109120487459
BaseRepresentation
bin11000011101100101…
…11011010011100111
31020220021022021122111
430032302323103213
5203344040224111
610011104341451
7643310534404
oct141662732347
936807267574
1013133133031
11562a347257
122666314887
131313b46545
148c83032ab
1551ce9da21
hex30ecbb4e7

13133133031 has 4 divisors (see below), whose sum is σ = 13253620600. Its totient is φ = 13012645464.

The previous prime is 13133133023. The next prime is 13133133049. The reversal of 13133133031 is 13033133131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13033133131 = 104991241369.

It is a cyclic number.

It is not a de Polignac number, because 13133133031 - 23 = 13133133023 is a prime.

It is a super-2 number, since 2×131331330312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13133132993 and 13133133011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13133133001) 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, 60243621 + ... + 60243838.

It is an arithmetic number, because the mean of its divisors is an integer number (3313405150).

Almost surely, 213133133031 is an apocalyptic number.

13133133031 is a deficient number, since it is larger than the sum of its proper divisors (120487569).

13133133031 is a wasteful number, since it uses less digits than its factorization.

13133133031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120487568.

The product of its (nonzero) digits is 729, while the sum is 22.

Adding to 13133133031 its reverse (13033133131), we get a palindrome (26166266162).

The spelling of 13133133031 in words is "thirteen billion, one hundred thirty-three million, one hundred thirty-three thousand, thirty-one".

Divisors: 1 109 120487459 13133133031