Search a number
-
+
1213113030103 = 13689631353137
BaseRepresentation
bin10001101001110011001…
…010111101010111010111
311021222020221012001121001
4101221303022331113113
5124333423413430403
62325144010204131
7153434033422342
oct21516312752727
94258227161531
101213113030103
11428529752757
12177139123647
138a51c213010
1442a01cb7459
1521851017c1d
hex11a732bd5d7

1213113030103 has 8 divisors (see below), whose sum is σ = 1306449326448. Its totient is φ = 1119779577984.

The previous prime is 1213113030091. The next prime is 1213113030179. The reversal of 1213113030103 is 3010303113121.

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-1213113030103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213113031103) 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, 219951 + ... + 1573087.

It is an arithmetic number, because the mean of its divisors is an integer number (163306165806).

Almost surely, 21213113030103 is an apocalyptic number.

1213113030103 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1213113030103 is a deficient number, since it is larger than the sum of its proper divisors (93336296345).

1213113030103 is a wasteful number, since it uses less digits than its factorization.

1213113030103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1422113.

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 1213113030103 its reverse (3010303113121), we get a palindrome (4223416143224).

The spelling of 1213113030103 in words is "one trillion, two hundred thirteen billion, one hundred thirteen million, thirty thousand, one hundred three".

Divisors: 1 13 68963 896519 1353137 17590781 93316386931 1213113030103