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2120112331 = 23471961251
BaseRepresentation
bin111111001011110…
…0101100011001011
312110202100212100221
41332113211203023
513320222043311
6550213210511
7103352441341
oct17627454313
95422325327
102120112331
11998825857
124b2030a37
1327a31044c
14161803991
15c61db671
hex7e5e58cb

2120112331 has 8 divisors (see below), whose sum is σ = 2259362304. Its totient is φ = 1984785000.

The previous prime is 2120112317. The next prime is 2120112353. The reversal of 2120112331 is 1332110212.

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

It is not a de Polignac number, because 2120112331 - 25 = 2120112299 is a prime.

It is a super-2 number, since 2×21201123312 = 8989752592116507122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2120112301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 979545 + ... + 981706.

It is an arithmetic number, because the mean of its divisors is an integer number (282420288).

Almost surely, 22120112331 is an apocalyptic number.

2120112331 is a deficient number, since it is larger than the sum of its proper divisors (139249973).

2120112331 is a wasteful number, since it uses less digits than its factorization.

2120112331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1961321.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 2120112331 is about 46044.6775534372. The cubic root of 2120112331 is about 1284.6543466134.

Adding to 2120112331 its reverse (1332110212), we get a palindrome (3452222543).

The spelling of 2120112331 in words is "two billion, one hundred twenty million, one hundred twelve thousand, three hundred thirty-one".

Divisors: 1 23 47 1081 1961251 45108773 92178797 2120112331