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13231211401 = 172931865747
BaseRepresentation
bin11000101001010010…
…00100001110001001
31021011002212011212201
430110221010032021
5204044142231101
610024530440201
7645611304232
oct142451041611
937132764781
1013231211401
11567a745a61
122693133061
13132b266495
148d7354089
155268c3e01
hex314a44389

13231211401 has 16 divisors (see below), whose sum is σ = 14960125440. Its totient is φ = 11635626240.

The previous prime is 13231211387. The next prime is 13231211407. The reversal of 13231211401 is 10411213231.

It is a cyclic number.

It is not a de Polignac number, because 13231211401 - 227 = 13096993673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13231211407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 417591 + ... + 448156.

It is an arithmetic number, because the mean of its divisors is an integer number (935007840).

Almost surely, 213231211401 is an apocalyptic number.

It is an amenable number.

13231211401 is a deficient number, since it is larger than the sum of its proper divisors (1728914039).

13231211401 is a wasteful number, since it uses less digits than its factorization.

13231211401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 865824.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 13231211401 its reverse (10411213231), we get a palindrome (23642424632).

The spelling of 13231211401 in words is "thirteen billion, two hundred thirty-one million, two hundred eleven thousand, four hundred one".

Divisors: 1 17 29 31 493 527 899 15283 865747 14717699 25106663 26838157 426813271 456248669 778306553 13231211401