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13130311211 = 23371877841
BaseRepresentation
bin11000011101010000…
…01010011000101011
31020220001222220211122
430032220022120223
5203342324424321
610010524045455
7643244542463
oct141650123053
936801886748
1013130311211
11562879a176
12266539388b
131313399024
148c7baaba3
1551cae28ab
hex30ea0a62b

13130311211 has 8 divisors (see below), whose sum is σ = 13190181264. Its totient is φ = 13070471680.

The previous prime is 13130311189. The next prime is 13130311217. The reversal of 13130311211 is 11211303131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13130311211 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13130311211.

It is not an unprimeable number, because it can be changed into a prime (13130311217) 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, 1670651 + ... + 1678491.

It is an arithmetic number, because the mean of its divisors is an integer number (1648772658).

Almost surely, 213130311211 is an apocalyptic number.

13130311211 is a deficient number, since it is larger than the sum of its proper divisors (59870053).

13130311211 is an equidigital number, since it uses as much as digits as its factorization.

13130311211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15261.

The product of its (nonzero) digits is 54, while the sum is 17.

Adding to 13130311211 its reverse (11211303131), we get a palindrome (24341614342).

The spelling of 13130311211 in words is "thirteen billion, one hundred thirty million, three hundred eleven thousand, two hundred eleven".

Divisors: 1 233 7187 7841 1674571 1826953 56353267 13130311211