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120101101 = 235221787
BaseRepresentation
bin1110010100010…
…01100011101101
322100222202201221
413022021203231
5221221213401
615530103341
72655561661
oct712114355
9270882657
10120101101
116188080a
123427ab51
131bb60c53
1411d448a1
15a8257a1
hex72898ed

120101101 has 4 divisors (see below), whose sum is σ = 125322912. Its totient is φ = 114879292.

The previous prime is 120101089. The next prime is 120101119. The reversal of 120101101 is 101101021.

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: 101101021 = 714443003.

It is a cyclic number.

It is not a de Polignac number, because 120101101 - 213 = 120092909 is a prime.

It is a super-2 number, since 2×1201011012 = 28848548922824402, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120101701) 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, 2610871 + ... + 2610916.

It is an arithmetic number, because the mean of its divisors is an integer number (31330728).

Almost surely, 2120101101 is an apocalyptic number.

It is an amenable number.

120101101 is a deficient number, since it is larger than the sum of its proper divisors (5221811).

120101101 is an equidigital number, since it uses as much as digits as its factorization.

120101101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5221810.

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

The square root of 120101101 is about 10959.0647867416. The cubic root of 120101101 is about 493.3808962644.

Adding to 120101101 its reverse (101101021), we get a palindrome (221202122).

The spelling of 120101101 in words is "one hundred twenty million, one hundred one thousand, one hundred one".

Divisors: 1 23 5221787 120101101