Search a number
-
+
1021310130311 = 1549659335139
BaseRepresentation
bin11101101110010101101…
…00111101100010000111
310121122011212012012122122
432313022310331202013
5113213120343132221
62101103340320155
7133534005604562
oct16671264754207
93548155165578
101021310130311
11364153a41239
12145b2a84305b
13754032173c3
14376087294d9
151b877523eab
hexedcad3d887

1021310130311 has 4 divisors (see below), whose sum is σ = 1021969467000. Its totient is φ = 1020650793624.

The previous prime is 1021310130293. The next prime is 1021310130353. The reversal of 1021310130311 is 1130310131201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1021310130311 is a prime.

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 1021310130311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021310180311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 329666021 + ... + 329669118.

It is an arithmetic number, because the mean of its divisors is an integer number (255492366750).

Almost surely, 21021310130311 is an apocalyptic number.

1021310130311 is a deficient number, since it is larger than the sum of its proper divisors (659336689).

1021310130311 is an equidigital number, since it uses as much as digits as its factorization.

1021310130311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 659336688.

The product of its (nonzero) digits is 54, while the sum is 17.

Adding to 1021310130311 its reverse (1130310131201), we get a palindrome (2151620261512).

The spelling of 1021310130311 in words is "one trillion, twenty-one billion, three hundred ten million, one hundred thirty thousand, three hundred eleven".

Divisors: 1 1549 659335139 1021310130311