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2130111323 = 19910704077
BaseRepresentation
bin111111011110110…
…1110101101011011
312111110011212101222
41332331232231123
513330302030243
6551211402255
7103533435044
oct17675565533
95443155358
102130111323
119a343518a
124b545338b
1327c401702
14162c878cb
15c7014168
hex7ef6eb5b

2130111323 has 4 divisors (see below), whose sum is σ = 2140815600. Its totient is φ = 2119407048.

The previous prime is 2130111307. The next prime is 2130111329. The reversal of 2130111323 is 3231110312.

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

It is a cyclic number.

It is not a de Polignac number, because 2130111323 - 24 = 2130111307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2130111329) 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, 5351840 + ... + 5352237.

It is an arithmetic number, because the mean of its divisors is an integer number (535203900).

Almost surely, 22130111323 is an apocalyptic number.

2130111323 is a deficient number, since it is larger than the sum of its proper divisors (10704277).

2130111323 is a wasteful number, since it uses less digits than its factorization.

2130111323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10704276.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 2130111323 is about 46153.1290705192. The cubic root of 2130111323 is about 1286.6707661000.

Adding to 2130111323 its reverse (3231110312), we get a palindrome (5361221635).

The spelling of 2130111323 in words is "two billion, one hundred thirty million, one hundred eleven thousand, three hundred twenty-three".

Divisors: 1 199 10704077 2130111323