Search a number
-
+
13021312102321 = 29721962198471
BaseRepresentation
bin1011110101111100001010…
…1011101010111110110001
31201002211021121222111112111
42331133002223222332301
53201320121344233241
643405524100525321
72512521152442445
oct275370253527661
951084247874474
1013021312102321
1141703422426a6
12156374b0b0841
13735b9b147753
1433034069c825
15178aaa6d3c81
hexbd7c2aeafb1

13021312102321 has 8 divisors (see below), whose sum is σ = 13472189035200. Its totient is φ = 12570559580880.

The previous prime is 13021312102307. The next prime is 13021312102363. The reversal of 13021312102321 is 12320121312031.

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

It is a cyclic number.

It is not a de Polignac number, because 13021312102321 - 223 = 13021303713713 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13021312102292 and 13021312102301.

It is not an unprimeable number, because it can be changed into a prime (13021312172321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30889885 + ... + 31308586.

It is an arithmetic number, because the mean of its divisors is an integer number (1684023629400).

Almost surely, 213021312102321 is an apocalyptic number.

It is an amenable number.

13021312102321 is a deficient number, since it is larger than the sum of its proper divisors (450876932879).

13021312102321 is an equidigital number, since it uses as much as digits as its factorization.

13021312102321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62205719.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 13021312102321 its reverse (12320121312031), we get a palindrome (25341433414352).

The spelling of 13021312102321 in words is "thirteen trillion, twenty-one billion, three hundred twelve million, one hundred two thousand, three hundred twenty-one".

Divisors: 1 29 7219 209351 62198471 1803755659 449010762149 13021312102321