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123124301421 = 3114386768359
BaseRepresentation
bin111001010101011000…
…1111011111001101101
3102202210202002120022220
41302222301323321231
54004124310121141
6132321301025553
711616064202622
oct1625261737155
9382722076286
10123124301421
1148242505010
121ba420b52b9
13b7c2570634
145d60268349
1533093ee766
hex1caac7be6d

123124301421 has 16 divisors (see below), whose sum is σ = 183254776320. Its totient is φ = 72885420720.

The previous prime is 123124301411. The next prime is 123124301441. The reversal of 123124301421 is 124103421321.

It is not a de Polignac number, because 123124301421 - 29 = 123124300909 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 123124301391 and 123124301400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123124301411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43382761 + ... + 43385598.

It is an arithmetic number, because the mean of its divisors is an integer number (11453423520).

Almost surely, 2123124301421 is an apocalyptic number.

123124301421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

123124301421 is a deficient number, since it is larger than the sum of its proper divisors (60130474899).

123124301421 is a wasteful number, since it uses less digits than its factorization.

123124301421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86768416.

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 123124301421 its reverse (124103421321), we get a palindrome (247227722742).

The spelling of 123124301421 in words is "one hundred twenty-three billion, one hundred twenty-four million, three hundred one thousand, four hundred twenty-one".

Divisors: 1 3 11 33 43 129 473 1419 86768359 260305077 954451949 2863355847 3731039437 11193118311 41041433807 123124301421