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130013223123 = 3719325847677
BaseRepresentation
bin111100100010101100…
…1000101100011010011
3110102120211211001100010
41321011121011203103
54112231341114443
6135421030330003
712251564106510
oct1710531054323
9412524731303
10130013223123
1150158090933
12212451b9903
13c34c854474
14641514c307
1535ae0c6733
hex1e456458d3

130013223123 has 16 divisors (see below), whose sum is σ = 208542513920. Its totient is φ = 70383098016.

The previous prime is 130013223103. The next prime is 130013223127. The reversal of 130013223123 is 321322310031.

It is not a de Polignac number, because 130013223123 - 216 = 130013157587 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

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 130013223123.

It is not an unprimeable number, because it can be changed into a prime (130013223127) 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, 162923440 + ... + 162924237.

It is an arithmetic number, because the mean of its divisors is an integer number (13033907120).

Almost surely, 2130013223123 is an apocalyptic number.

130013223123 is a deficient number, since it is larger than the sum of its proper divisors (78529290797).

130013223123 is a wasteful number, since it uses less digits than its factorization.

130013223123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325847706.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 130013223123 its reverse (321322310031), we get a palindrome (451335533154).

The spelling of 130013223123 in words is "one hundred thirty billion, thirteen million, two hundred twenty-three thousand, one hundred twenty-three".

Divisors: 1 3 7 19 21 57 133 399 325847677 977543031 2280933739 6191105863 6842801217 18573317589 43337741041 130013223123