Search a number
-
+
121301213013 = 3317325969003
BaseRepresentation
bin111000011111000011…
…1011001111101010101
3102121002200122002012000
41300332013121331111
53441411102304023
6131420333545513
711522646204231
oct1607607317525
9377080562160
10121301213013
1147497410782
121b613645299
13b5919584b6
145c2a0a15c1
15324e335243
hex1c3e1d9f55

121301213013 has 16 divisors (see below), whose sum is σ = 180744267840. Its totient is φ = 80400030192.

The previous prime is 121301212961. The next prime is 121301213029. The reversal of 121301213013 is 310312103121.

It is not a de Polignac number, because 121301213013 - 214 = 121301196629 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121301213113) 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, 12979831 + ... + 12989172.

It is an arithmetic number, because the mean of its divisors is an integer number (11296516740).

Almost surely, 2121301213013 is an apocalyptic number.

It is an amenable number.

121301213013 is a deficient number, since it is larger than the sum of its proper divisors (59443054827).

121301213013 is a wasteful number, since it uses less digits than its factorization.

121301213013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25969185 (or 25969179 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 121301213013 its reverse (310312103121), we get a palindrome (431613316134).

The spelling of 121301213013 in words is "one hundred twenty-one billion, three hundred one million, two hundred thirteen thousand, thirteen".

Divisors: 1 3 9 27 173 519 1557 4671 25969003 77907009 233721027 701163081 4492637519 13477912557 40433737671 121301213013