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130312121113 = 1797269293773
BaseRepresentation
bin111100101011100110…
…1010010101100011001
3110110100200020122022001
41321113031102230121
54113334400333423
6135510425001001
712262153516306
oct1712715225431
9413320218261
10130312121113
11502a0882369
1221309323161
13c399757795
146442b160ad
1535ca468cad
hex1e57352b19

130312121113 has 16 divisors (see below), whose sum is σ = 139918680720. Its totient is φ = 120930656256.

The previous prime is 130312121099. The next prime is 130312121117. The reversal of 130312121113 is 311121213031.

It can be written as a sum of positive squares in 8 ways, for example, as 7750513369 + 122561607744 = 88037^2 + 350088^2 .

It is a cyclic number.

It is not a de Polignac number, because 130312121113 - 25 = 130312121081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (130312121117) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 296695 + ... + 590467.

It is an arithmetic number, because the mean of its divisors is an integer number (8744917545).

Almost surely, 2130312121113 is an apocalyptic number.

It is an amenable number.

130312121113 is a deficient number, since it is larger than the sum of its proper divisors (9606559607).

130312121113 is a wasteful number, since it uses less digits than its factorization.

130312121113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294156.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 130312121113 its reverse (311121213031), we get a palindrome (441433334144).

The spelling of 130312121113 in words is "one hundred thirty billion, three hundred twelve million, one hundred twenty-one thousand, one hundred thirteen".

Divisors: 1 17 97 269 1649 4573 26093 293773 443581 4994141 28495981 79024937 484431677 1343423929 7665418889 130312121113