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2121331303 = 71361401953
BaseRepresentation
bin111111001110000…
…1111001001100111
312110211122210111001
41332130033021213
513321030100203
6550255254131
7103366006240
oct17634171147
95424583431
102121331303
11999488673
124b251a347
1327a649230
14161a3dcc7
15c637c91d
hex7e70f267

2121331303 has 32 divisors (see below), whose sum is σ = 2663079552. Its totient is φ = 1645056000.

The previous prime is 2121331301. The next prime is 2121331321. The reversal of 2121331303 is 3031331212.

It is not a de Polignac number, because 2121331303 - 21 = 2121331301 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121331301) 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 31 ways as a sum of consecutive naturals, for example, 2225475 + ... + 2226427.

It is an arithmetic number, because the mean of its divisors is an integer number (83221236).

Almost surely, 22121331303 is an apocalyptic number.

2121331303 is a deficient number, since it is larger than the sum of its proper divisors (541748249).

2121331303 is a wasteful number, since it uses less digits than its factorization.

2121331303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1435.

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 2121331303 is about 46057.9124906894. The cubic root of 2121331303 is about 1284.9005061576.

Adding to 2121331303 its reverse (3031331212), we get a palindrome (5152662515).

Subtracting 2121331303 from its reverse (3031331212), we obtain a palindrome (909999909).

The spelling of 2121331303 in words is "two billion, one hundred twenty-one million, three hundred thirty-one thousand, three hundred three".

Divisors: 1 7 13 61 91 401 427 793 953 2807 5213 5551 6671 12389 24461 36491 58133 86723 171227 317993 382153 406931 755729 2225951 2675071 4967989 5290103 23311333 34775923 163179331 303047329 2121331303