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130131200321 = 47832692461
BaseRepresentation
bin111100100110001101…
…1001000100101000001
3110102220001210220121222
41321030123020211001
54113002041402241
6135440443124425
712254525644403
oct1711433104501
9412801726558
10130131200321
1150208740951
1221278813715
13c36b120765
146426a9cb73
1535b962ca4b
hex1e4c6c8941

130131200321 has 24 divisors (see below), whose sum is σ = 135295864704. Its totient is φ = 125088271040.

The previous prime is 130131200291. The next prime is 130131200323. The reversal of 130131200321 is 123002131031.

It is a de Polignac number, because none of the positive numbers 2k-130131200321 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 130131200321.

It is not an unprimeable number, because it can be changed into a prime (130131200323) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 282280031 + ... + 282280491.

It is an arithmetic number, because the mean of its divisors is an integer number (5637327696).

Almost surely, 2130131200321 is an apocalyptic number.

It is an amenable number.

130131200321 is a deficient number, since it is larger than the sum of its proper divisors (5164664383).

130131200321 is an frugal number, since it uses more digits than its factorization.

130131200321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1129 (or 860 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 130131200321 its reverse (123002131031), we get a palindrome (253133331352).

The spelling of 130131200321 in words is "one hundred thirty billion, one hundred thirty-one million, two hundred thousand, three hundred twenty-one".

Divisors: 1 47 83 269 461 3901 12643 21667 22327 38263 72361 124009 1049369 1798361 3400967 5828423 6005963 10292747 33358421 282280261 483759109 1567845787 2768748943 130131200321