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120020111201 = 347345879283
BaseRepresentation
bin110111111000111000…
…0011000111101100001
3102110210102000100212202
41233301300120331201
53431300122024301
6131045251302545
711446132053434
oct1576160307541
9373712010782
10120020111201
114699a250a51
121b3165aaa55
13b4194092a3
145b47c9d81b
1531c6b2966b
hex1bf1c18f61

120020111201 has 4 divisors (see below), whose sum is σ = 120365990832. Its totient is φ = 119674231572.

The previous prime is 120020111191. The next prime is 120020111219. The reversal of 120020111201 is 102111020021.

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 a de Polignac number, because none of the positive numbers 2k-120020111201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120020111291) 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, 172939295 + ... + 172939988.

It is an arithmetic number, because the mean of its divisors is an integer number (30091497708).

Almost surely, 2120020111201 is an apocalyptic number.

It is an amenable number.

120020111201 is a deficient number, since it is larger than the sum of its proper divisors (345879631).

120020111201 is an equidigital number, since it uses as much as digits as its factorization.

120020111201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345879630.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 120020111201 its reverse (102111020021), we get a palindrome (222131131222).

The spelling of 120020111201 in words is "one hundred twenty billion, twenty million, one hundred eleven thousand, two hundred one".

Divisors: 1 347 345879283 120020111201