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12520240212113 = 43966894263703
BaseRepresentation
bin1011011000110001100001…
…1110000110100010010001
31122022220221001211010100122
42312030120132012202101
53120112422443241423
642343415143200025
72431362136603544
oct266143036064221
948286831733318
1012520240212113
113a9789321a227
1214a260b146015
136ca865c0b81a
14313da8d7685b
1516aa3091d8c8
hexb6318786891

12520240212113 has 8 divisors (see below), whose sum is σ = 12550639094400. Its totient is φ = 12489849871488.

The previous prime is 12520240212101. The next prime is 12520240212121. The reversal of 12520240212113 is 31121204202521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12520240212113 - 216 = 12520240146577 is a prime.

It is a super-2 number, since 2×125202402121132 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12520240212313) 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 7 ways as a sum of consecutive naturals, for example, 804620 + ... + 5068322.

It is an arithmetic number, because the mean of its divisors is an integer number (1568829886800).

Almost surely, 212520240212113 is an apocalyptic number.

It is an amenable number.

12520240212113 is a deficient number, since it is larger than the sum of its proper divisors (30398882287).

12520240212113 is an equidigital number, since it uses as much as digits as its factorization.

12520240212113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4270831.

The product of its (nonzero) digits is 1920, while the sum is 26.

Adding to 12520240212113 its reverse (31121204202521), we get a palindrome (43641444414634).

The spelling of 12520240212113 in words is "twelve trillion, five hundred twenty billion, two hundred forty million, two hundred twelve thousand, one hundred thirteen".

Divisors: 1 439 6689 2936471 4263703 1871765617 28519909367 12520240212113