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121320212233 = 1117911615773
BaseRepresentation
bin111000011111100111…
…1111000011100001001
3102121011000101100012211
41300333033320130021
53441430433242413
6131422253105121
711523266534443
oct1607717703411
9377130340184
10121320212233
11474a7108110
121b619a881a1
13b59587b23c
145c2c809493
153250d3983d
hex1c3f3f8709

121320212233 has 8 divisors (see below), whose sum is σ = 132356926656. Its totient is φ = 110284765200.

The previous prime is 121320212227. The next prime is 121320212239. The reversal of 121320212233 is 332212023121.

It is an interprime number because it is at equal distance from previous prime (121320212227) and next prime (121320212239).

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 121320212233 - 29 = 121320211721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121320212239) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110866 + ... + 504907.

It is an arithmetic number, because the mean of its divisors is an integer number (16544615832).

Almost surely, 2121320212233 is an apocalyptic number.

It is an amenable number.

121320212233 is a deficient number, since it is larger than the sum of its proper divisors (11036714423).

121320212233 is a wasteful number, since it uses less digits than its factorization.

121320212233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 633695.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 121320212233 its reverse (332212023121), we get a palindrome (453532235354).

The spelling of 121320212233 in words is "one hundred twenty-one billion, three hundred twenty million, two hundred twelve thousand, two hundred thirty-three".

Divisors: 1 11 17911 197021 615773 6773503 11029110203 121320212233