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120211102013 = 157765675809
BaseRepresentation
bin110111111110100100…
…0111101100100111101
3102111021201101201000112
41233331020331210331
53432143020231023
6131120233035405
711453641336112
oct1577510754475
9374251351015
10120211102013
1146a880401a2
121b36a555b65
13b449b5a9c2
145b653b8909
1531d87a4478
hex1bfd23d93d

120211102013 has 4 divisors (see below), whose sum is σ = 120976777980. Its totient is φ = 119445426048.

The previous prime is 120211101991. The next prime is 120211102021. The reversal of 120211102013 is 310201112021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 310201112021 = 417565880781.

It can be written as a sum of positive squares in 2 ways, for example, as 29900634724 + 90310467289 = 172918^2 + 300517^2 .

It is a cyclic number.

It is not a de Polignac number, because 120211102013 - 214 = 120211085629 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 (120211102313) 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, 382837748 + ... + 382838061.

It is an arithmetic number, because the mean of its divisors is an integer number (30244194495).

Almost surely, 2120211102013 is an apocalyptic number.

It is an amenable number.

120211102013 is a deficient number, since it is larger than the sum of its proper divisors (765675967).

120211102013 is an equidigital number, since it uses as much as digits as its factorization.

120211102013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 765675966.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 120211102013 its reverse (310201112021), we get a palindrome (430412214034).

The spelling of 120211102013 in words is "one hundred twenty billion, two hundred eleven million, one hundred two thousand, thirteen".

Divisors: 1 157 765675809 120211102013