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120233011211 = 307391638473
BaseRepresentation
bin110111111111001110…
…0100010100000001011
3102111100020121210210022
41233332130202200023
53432214122324321
6131122334411055
711454325506245
oct1577634424013
9374306553708
10120233011211
1146a99444975
121b375960a8b
13b45155c121
145b6827d095
1531da680dab
hex1bfe72280b

120233011211 has 4 divisors (see below), whose sum is σ = 120624649992. Its totient is φ = 119841372432.

The previous prime is 120233011201. The next prime is 120233011219. The reversal of 120233011211 is 112110332021.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-120233011211 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 120233011211.

It is not an unprimeable number, because it can be changed into a prime (120233011219) 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, 195818930 + ... + 195819543.

It is an arithmetic number, because the mean of its divisors is an integer number (30156162498).

Almost surely, 2120233011211 is an apocalyptic number.

120233011211 is a deficient number, since it is larger than the sum of its proper divisors (391638781).

120233011211 is an equidigital number, since it uses as much as digits as its factorization.

120233011211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391638780.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 120233011211 its reverse (112110332021), we get a palindrome (232343343232).

The spelling of 120233011211 in words is "one hundred twenty billion, two hundred thirty-three million, eleven thousand, two hundred eleven".

Divisors: 1 307 391638473 120233011211