Search a number
-
+
13102110112121 = 53929266102933
BaseRepresentation
bin1011111010101001001010…
…0111100111100101111001
31201101112211120200200011222
42332222102213213211321
53204131110142041441
643511005402401425
72521411334261312
oct276522247474571
951345746620158
1013102110112121
1141a1634650308
12157733a200275
137406a66b65c4
14334207405609
1517ac38c84d4b
hexbea929e7979

13102110112121 has 8 divisors (see below), whose sum is σ = 13363689345480. Its totient is φ = 12841063086592.

The previous prime is 13102110112099. The next prime is 13102110112211. The reversal of 13102110112121 is 12121101120131.

It can be written as a sum of positive squares in 4 ways, for example, as 1162763239225 + 11939346872896 = 1078315^2 + 3455336^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13102110112121 is a prime.

It is a super-2 number, since 2×131021101121212 (a number of 27 digits) contains 22 as substring.

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 13102110112121.

It is not an unprimeable number, because it can be changed into a prime (13102110117121) 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, 133002230 + ... + 133100703.

It is an arithmetic number, because the mean of its divisors is an integer number (1670461168185).

Almost surely, 213102110112121 is an apocalyptic number.

It is an amenable number.

13102110112121 is a deficient number, since it is larger than the sum of its proper divisors (261579233359).

13102110112121 is an equidigital number, since it uses as much as digits as its factorization.

13102110112121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266103915.

The product of its (nonzero) digits is 24, while the sum is 17.

Adding to 13102110112121 its reverse (12121101120131), we get a palindrome (25223211232252).

The spelling of 13102110112121 in words is "thirteen trillion, one hundred two billion, one hundred ten million, one hundred twelve thousand, one hundred twenty-one".

Divisors: 1 53 929 49237 266102933 14103455449 247209624757 13102110112121