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13124303531240 = 23511231731198247
BaseRepresentation
bin1011111011111011110101…
…1100110010110011101000
31201110200010021112011210212
42332332331130302303220
53210012033200444430
643525115524400252
72523125322235166
oct276767534626350
951420107464725
1013124303531240
1141aaa93214600
12157b6b2846088
1374280262a375
14335310b34236
1517b5d736cb95
hexbefbd732ce8

13124303531240 has 192 divisors, whose sum is σ = 33964291630080. Its totient is φ = 4555251993600.

The previous prime is 13124303531197. The next prime is 13124303531351. The reversal of 13124303531240 is 4213530342131.

It is a junction number, because it is equal to n+sod(n) for n = 13124303531197 and 13124303531206.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10353797 + ... + 11552043.

It is an arithmetic number, because the mean of its divisors is an integer number (176897352240).

Almost surely, 213124303531240 is an apocalyptic number.

13124303531240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13124303531240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16982145815040).

13124303531240 is an abundant number, since it is smaller than the sum of its proper divisors (20839988098840).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13124303531240 is a wasteful number, since it uses less digits than its factorization.

13124303531240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1198384 (or 1198369 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 32.

Adding to 13124303531240 its reverse (4213530342131), we get a palindrome (17337833873371).

The spelling of 13124303531240 in words is "thirteen trillion, one hundred twenty-four billion, three hundred three million, five hundred thirty-one thousand, two hundred forty".