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130131300121 = 225629576749
BaseRepresentation
bin111100100110001101…
…1100000111100011001
3110102220001222222112021
41321030123200330121
54113002103100441
6135440445214441
712254526541354
oct1711433407431
9412801888467
10130131300121
11502087a9929
1221278861421
13c36b157004
146426ac729b
1535b964c3d1
hex1e4c6e0f19

130131300121 has 4 divisors (see below), whose sum is σ = 130132102500. Its totient is φ = 130130497744.

The previous prime is 130131300107. The next prime is 130131300157. The reversal of 130131300121 is 121003131031.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 128494288521 + 1637011600 = 358461^2 + 40460^2 .

It is a cyclic number.

It is not a de Polignac number, because 130131300121 - 213 = 130131291929 is a prime.

It is a super-2 number, since 2×1301313001212 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 130131300095 and 130131300104.

It is not an unprimeable number, because it can be changed into a prime (130131300161) 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, 62746 + ... + 514003.

It is an arithmetic number, because the mean of its divisors is an integer number (32533025625).

Almost surely, 2130131300121 is an apocalyptic number.

It is an amenable number.

130131300121 is a deficient number, since it is larger than the sum of its proper divisors (802379).

130131300121 is an equidigital number, since it uses as much as digits as its factorization.

130131300121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 802378.

The product of its (nonzero) digits is 54, while the sum is 16.

Adding to 130131300121 its reverse (121003131031), we get a palindrome (251134431152).

The spelling of 130131300121 in words is "one hundred thirty billion, one hundred thirty-one million, three hundred thousand, one hundred twenty-one".

Divisors: 1 225629 576749 130131300121