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110123131020 = 22357262197931
BaseRepresentation
bin110011010001111011…
…0011010000010001100
3101112020200002200101020
41212203312122002030
53301013010143040
6122331224514140
710645645112010
oct1464366320214
9345220080336
10110123131020
1142780700291
121941401b950
13a4ccb7bcb6
1454896b6540
152ce7d1acd0
hex19a3d9a08c

110123131020 has 48 divisors (see below), whose sum is σ = 352394020608. Its totient is φ = 25171001280.

The previous prime is 110123131009. The next prime is 110123131033. The reversal of 110123131020 is 20131321011.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 131098546 + ... + 131099385.

It is an arithmetic number, because the mean of its divisors is an integer number (7341542096).

Almost surely, 2110123131020 is an apocalyptic number.

110123131020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

110123131020 is an abundant number, since it is smaller than the sum of its proper divisors (242270889588).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

110123131020 is a wasteful number, since it uses less digits than its factorization.

110123131020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262197950 (or 262197948 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 110123131020 its reverse (20131321011), we get a palindrome (130254452031).

The spelling of 110123131020 in words is "one hundred ten billion, one hundred twenty-three million, one hundred thirty-one thousand, twenty".

Divisors: 1 2 3 4 5 6 7 10 12 14 15 20 21 28 30 35 42 60 70 84 105 140 210 420 262197931 524395862 786593793 1048791724 1310989655 1573187586 1835385517 2621979310 3146375172 3670771034 3932968965 5243958620 5506156551 7341542068 7865937930 9176927585 11012313102 15731875860 18353855170 22024626204 27530782755 36707710340 55061565510 110123131020