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142231004123 = 1323478799371
BaseRepresentation
bin1000010001110110100…
…0001110001111011011
3111121010022201122001112
42010131220032033123
54312242114112443
6145201240010535
713163421405335
oct2043550161733
9447108648045
10142231004123
115535776a5aa
1223694a60a4b
1310548b5a690
146c53a5a455
153a76a14b18
hex211da0e3db

142231004123 has 16 divisors (see below), whose sum is σ = 159866493696. Its totient is φ = 125554392480.

The previous prime is 142231004089. The next prime is 142231004131. The reversal of 142231004123 is 321400132241.

142231004123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 142231004123 - 26 = 142231004059 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is not an unprimeable number, because it can be changed into a prime (142231004173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1381628 + ... + 1480998.

It is an arithmetic number, because the mean of its divisors is an integer number (9991655856).

Almost surely, 2142231004123 is an apocalyptic number.

142231004123 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

142231004123 is a deficient number, since it is larger than the sum of its proper divisors (17635489573).

142231004123 is a wasteful number, since it uses less digits than its factorization.

142231004123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104194.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 142231004123 its reverse (321400132241), we get a palindrome (463631136364).

The spelling of 142231004123 in words is "one hundred forty-two billion, two hundred thirty-one million, four thousand, one hundred twenty-three".

Divisors: 1 13 23 299 4787 62231 99371 110101 1291823 1431313 2285533 29711929 475688977 6183956701 10940846471 142231004123