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130131422421 = 371121353239311
BaseRepresentation
bin111100100110001101…
…1111110110011010101
3110102220002020012021220
41321030123332303111
54113002121004141
6135440452000553
712254530561050
oct1711433766325
9412802205256
10130131422421
1150208882800
1221278900159
13c36b19a890
146426b19a97
1535b9673766
hex1e4c6fecd5

130131422421 has 192 divisors, whose sum is σ = 240929095680. Its totient is φ = 60771110400.

The previous prime is 130131422419. The next prime is 130131422461. The reversal of 130131422421 is 124224131031.

It is not a de Polignac number, because 130131422421 - 21 = 130131422419 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 130131422391 and 130131422400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130131422461) 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 191 ways as a sum of consecutive naturals, for example, 418428856 + ... + 418429166.

It is an arithmetic number, because the mean of its divisors is an integer number (1254839040).

Almost surely, 2130131422421 is an apocalyptic number.

130131422421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

130131422421 is a deficient number, since it is larger than the sum of its proper divisors (110797673259).

130131422421 is a wasteful number, since it uses less digits than its factorization.

130131422421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 648 (or 637 counting only the distinct ones).

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

Adding to 130131422421 its reverse (124224131031), we get a palindrome (254355553452).

The spelling of 130131422421 in words is "one hundred thirty billion, one hundred thirty-one million, four hundred twenty-two thousand, four hundred twenty-one".