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143130124021 = 235559607619
BaseRepresentation
bin1000010101001100111…
…0000101111011110101
3111200102222120122200111
42011103032011323311
54321112302432041
6145430355143021
713224616660213
oct2052316057365
9450388518614
10143130124021
11557792506a5
12238a5ba4a71
13106602065a1
146cdb227cb3
153aca91a981
hex2153385ef5

143130124021 has 4 divisors (see below), whose sum is σ = 143130967200. Its totient is φ = 143129280844.

The previous prime is 143130124019. The next prime is 143130124057. The reversal of 143130124021 is 120421031341.

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 a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 143130124021 - 21 = 143130124019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 143130123983 and 143130124001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143130124061) 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, 68251 + ... + 539368.

It is an arithmetic number, because the mean of its divisors is an integer number (35782741800).

Almost surely, 2143130124021 is an apocalyptic number.

It is an amenable number.

143130124021 is a deficient number, since it is larger than the sum of its proper divisors (843179).

143130124021 is an equidigital number, since it uses as much as digits as its factorization.

143130124021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 843178.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 143130124021 its reverse (120421031341), we get a palindrome (263551155362).

The spelling of 143130124021 in words is "one hundred forty-three billion, one hundred thirty million, one hundred twenty-four thousand, twenty-one".

Divisors: 1 235559 607619 143130124021