Search a number
-
+
10231121311 = 19863623963
BaseRepresentation
bin10011000011101001…
…01000010110011111
3222102000122210221221
421201310220112133
5131423131340221
64411120234211
7511352045005
oct114164502637
928360583857
1010231121311
114380223964
121b9646b967
13c7084cc48
146d0b26a75
153ed313541
hex261d2859f

10231121311 has 8 divisors (see below), whose sum is σ = 10782097920. Its totient is φ = 9681394392.

The previous prime is 10231121309. The next prime is 10231121333. The reversal of 10231121311 is 11312113201.

It is a happy number.

10231121311 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 10231121311 - 21 = 10231121309 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 (10231121011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 295585 + ... + 328378.

It is an arithmetic number, because the mean of its divisors is an integer number (1347762240).

Almost surely, 210231121311 is an apocalyptic number.

10231121311 is a deficient number, since it is larger than the sum of its proper divisors (550976609).

10231121311 is an equidigital number, since it uses as much as digits as its factorization.

10231121311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 624845.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 10231121311 its reverse (11312113201), we get a palindrome (21543234512).

The spelling of 10231121311 in words is "ten billion, two hundred thirty-one million, one hundred twenty-one thousand, three hundred eleven".

Divisors: 1 19 863 16397 623963 11855297 538480069 10231121311