Search a number
-
+
2121113131310 = 25212111313131
BaseRepresentation
bin11110110111011100001…
…100011101100100101110
321111202222000120101120002
4132313130030131210232
5234223014430200220
64302231555424302
7306150106064165
oct36673414354456
97452860511502
102121113131310
11748617079a38
122a31045b5092
13125035249304
147493b9923dc
153a295a5ec75
hex1eddc31d92e

2121113131310 has 8 divisors (see below), whose sum is σ = 3818003636376. Its totient is φ = 848445252520.

The previous prime is 2121113131307. The next prime is 2121113131321. The reversal of 2121113131310 is 131313111212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×21211131313103 (a number of 38 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106055656556 + ... + 106055656575.

It is an arithmetic number, because the mean of its divisors is an integer number (477250454547).

Almost surely, 22121113131310 is an apocalyptic number.

2121113131310 is a deficient number, since it is larger than the sum of its proper divisors (1696890505066).

2121113131310 is a wasteful number, since it uses less digits than its factorization.

2121113131310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212111313138.

The product of its (nonzero) digits is 108, while the sum is 20.

Adding to 2121113131310 its reverse (131313111212), we get a palindrome (2252426242522).

The spelling of 2121113131310 in words is "two trillion, one hundred twenty-one billion, one hundred thirteen million, one hundred thirty-one thousand, three hundred ten".

Divisors: 1 2 5 10 212111313131 424222626262 1060556565655 2121113131310