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121321123093 = 199960690907
BaseRepresentation
bin111000011111101001…
…1010110110100010101
3102121011002002121200101
41300333103112310111
53441431201414333
6131422324414101
711523310350142
oct1607723266425
9377132077611
10121321123093
11474a767a495
121b61a247331
13b595b09a01
145c2c9a53c9
153250e6967d
hex1c3f4d6d15

121321123093 has 4 divisors (see below), whose sum is σ = 121381816000. Its totient is φ = 121260430188.

The previous prime is 121321123057. The next prime is 121321123109. The reversal of 121321123093 is 390321123121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 121321123093 - 29 = 121321122581 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 (121321123193) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30343455 + ... + 30347452.

It is an arithmetic number, because the mean of its divisors is an integer number (30345454000).

Almost surely, 2121321123093 is an apocalyptic number.

It is an amenable number.

121321123093 is a deficient number, since it is larger than the sum of its proper divisors (60692907).

121321123093 is an equidigital number, since it uses as much as digits as its factorization.

121321123093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60692906.

The product of its (nonzero) digits is 1944, while the sum is 28.

Adding to 121321123093 its sum of digits (28), we get a palindrome (121321123121).

The spelling of 121321123093 in words is "one hundred twenty-one billion, three hundred twenty-one million, one hundred twenty-three thousand, ninety-three".

Divisors: 1 1999 60690907 121321123093