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120110101 = 131916871
BaseRepresentation
bin1110010100010…
…11110000010101
322101000020002021
413022023300111
5221222010401
615530213141
72655630136
oct712136025
9271006067
10120110101
1161887551
12342841b1
131bb65087
1411d47c8d
15a8282a1
hex728bc15

120110101 has 4 divisors (see below), whose sum is σ = 121027104. Its totient is φ = 119193100.

The previous prime is 120110093. The next prime is 120110143. The reversal of 120110101 is 101011021.

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, and also an emirpimes, since its reverse is a distinct semiprime: 101011021 = 244141381.

It is a cyclic number.

It is not a de Polignac number, because 120110101 - 23 = 120110093 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 (120110161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 458305 + ... + 458566.

It is an arithmetic number, because the mean of its divisors is an integer number (30256776).

Almost surely, 2120110101 is an apocalyptic number.

It is an amenable number.

120110101 is a deficient number, since it is larger than the sum of its proper divisors (917003).

120110101 is an equidigital number, since it uses as much as digits as its factorization.

120110101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 917002.

The product of its (nonzero) digits is 2, while the sum is 7.

The square root of 120110101 is about 10959.4753980289. The cubic root of 120110101 is about 493.3932200958.

Adding to 120110101 its reverse (101011021), we get a palindrome (221121122).

The spelling of 120110101 in words is "one hundred twenty million, one hundred ten thousand, one hundred one".

Divisors: 1 131 916871 120110101