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130512325031 = 1131271173891
BaseRepresentation
bin111100110001100100…
…1000000100110100111
3110110212121222001102222
41321203021000212213
54114242123400111
6135542340022555
712300134313224
oct1714311004647
9413777861388
10130512325031
1150393894550
1221364391a5b
13c3cc08383a
14646154c94b
1535dcd137db
hex1e632409a7

130512325031 has 24 divisors (see below), whose sum is σ = 149190989184. Its totient is φ = 113202390000.

The previous prime is 130512324977. The next prime is 130512325057. The reversal of 130512325031 is 130523215031.

It is not a de Polignac number, because 130512325031 - 26 = 130512324967 is a prime.

It is a super-2 number, since 2×1305123250312 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130512325061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 663596 + ... + 837486.

It is an arithmetic number, because the mean of its divisors is an integer number (6216291216).

Almost surely, 2130512325031 is an apocalyptic number.

130512325031 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

130512325031 is a deficient number, since it is larger than the sum of its proper divisors (18678664153).

130512325031 is a wasteful number, since it uses less digits than its factorization.

130512325031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174035 (or 174004 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 26.

Subtracting 130512325031 from its reverse (130523215031), we obtain a square (10890000 = 33002).

The spelling of 130512325031 in words is "one hundred thirty billion, five hundred twelve million, three hundred twenty-five thousand, thirty-one".

Divisors: 1 11 31 71 341 781 961 2201 10571 24211 68231 173891 750541 1912801 5390621 12346261 59296831 135808871 167109251 382734091 1838201761 4210075001 11864756821 130512325031