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130553013021 = 343517671007
BaseRepresentation
bin111100110010110010…
…0001110001100011101
3110110222110112012212120
41321211210032030131
54114333032404041
6135550352053153
712301140205134
oct1714544161435
9413873465776
10130553013021
1150404854a92
1221375b341b9
13c40762b582
146466b0091b
1535e169e366
hex1e6590e31d

130553013021 has 4 divisors (see below), whose sum is σ = 174070684032. Its totient is φ = 87035342012.

The previous prime is 130553013013. The next prime is 130553013029. The reversal of 130553013021 is 120310355031.

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.

It is an interprime number because it is at equal distance from previous prime (130553013013) and next prime (130553013029).

It is a cyclic number.

It is not a de Polignac number, because 130553013021 - 23 = 130553013013 is a prime.

It is a super-2 number, since 2×1305530130212 (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 130553012982 and 130553013000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130553013029) 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 3 ways as a sum of consecutive naturals, for example, 21758835501 + ... + 21758835506.

It is an arithmetic number, because the mean of its divisors is an integer number (43517671008).

Almost surely, 2130553013021 is an apocalyptic number.

It is an amenable number.

130553013021 is a deficient number, since it is larger than the sum of its proper divisors (43517671011).

130553013021 is an equidigital number, since it uses as much as digits as its factorization.

130553013021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43517671010.

The product of its (nonzero) digits is 1350, while the sum is 24.

Adding to 130553013021 its reverse (120310355031), we get a palindrome (250863368052).

The spelling of 130553013021 in words is "one hundred thirty billion, five hundred fifty-three million, thirteen thousand, twenty-one".

Divisors: 1 3 43517671007 130553013021