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120201212113 = 891350575417
BaseRepresentation
bin110111111110010001…
…1001111000011010001
3102111021000210020121221
41233330203033003101
53432133002241423
6131115241045041
711453461305433
oct1577443170321
9374230706557
10120201212113
1146a824a5824
121b367186781
13b447aa72a8
145b63d62653
1531d799de5d
hex1bfc8cf0d1

120201212113 has 4 divisors (see below), whose sum is σ = 121551787620. Its totient is φ = 118850636608.

The previous prime is 120201212083. The next prime is 120201212119. The reversal of 120201212113 is 311212102021.

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

It can be written as a sum of positive squares in 2 ways, for example, as 39145413904 + 81055798209 = 197852^2 + 284703^2 .

It is a cyclic number.

It is not a de Polignac number, because 120201212113 - 25 = 120201212081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120201212119) 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, 675287620 + ... + 675287797.

It is an arithmetic number, because the mean of its divisors is an integer number (30387946905).

Almost surely, 2120201212113 is an apocalyptic number.

It is an amenable number.

120201212113 is a deficient number, since it is larger than the sum of its proper divisors (1350575507).

120201212113 is an equidigital number, since it uses as much as digits as its factorization.

120201212113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1350575506.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 120201212113 its reverse (311212102021), we get a palindrome (431413314134).

The spelling of 120201212113 in words is "one hundred twenty billion, two hundred one million, two hundred twelve thousand, one hundred thirteen".

Divisors: 1 89 1350575417 120201212113