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120232101 = 31113612677
BaseRepresentation
bin1110010101010…
…01100010100101
322101020102102210
413022221202211
5221234411401
615532554033
72656645623
oct712514245
9271212383
10120232101
1161960180
1234322919
131bba8772
1411d7a513
15a84e4d6
hex72a98a5

120232101 has 16 divisors (see below), whose sum is σ = 175076928. Its totient is φ = 72787200.

The previous prime is 120232097. The next prime is 120232111. The reversal of 120232101 is 101232021.

It is not a de Polignac number, because 120232101 - 22 = 120232097 is a prime.

It is a super-2 number, since 2×1202321012 = 28911516221748402, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120232111) 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 15 ways as a sum of consecutive naturals, for example, 43575 + ... + 46251.

It is an arithmetic number, because the mean of its divisors is an integer number (10942308).

Almost surely, 2120232101 is an apocalyptic number.

120232101 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

120232101 is a deficient number, since it is larger than the sum of its proper divisors (54844827).

120232101 is a wasteful number, since it uses less digits than its factorization.

120232101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4052.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 120232101 is about 10965.0399452077. The cubic root of 120232101 is about 493.5602157758.

Adding to 120232101 its reverse (101232021), we get a palindrome (221464122).

It can be divided in two parts, 120 and 232101, that added together give a triangular number (232221 = T681).

The spelling of 120232101 in words is "one hundred twenty million, two hundred thirty-two thousand, one hundred one".

Divisors: 1 3 11 33 1361 2677 4083 8031 14971 29447 44913 88341 3643397 10930191 40077367 120232101