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12320231020031 = 111710765471503
BaseRepresentation
bin1011001101001000011011…
…1111100101010111111111
31121121210200002020102200202
42303102012333211113333
53103323313120120111
642111500324114115
72411051544533504
oct263220677452777
947553602212622
1012320231020031
113a1aa8724a970
12146b8b053593b
136b4a3ca2175c
143084339814ab
15165726780b3b
hexb3486fe55ff

12320231020031 has 8 divisors (see below), whose sum is σ = 13441037885184. Its totient is φ = 11199555132120.

The previous prime is 12320231019953. The next prime is 12320231020037. The reversal of 12320231020031 is 13002013202321.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12320231020031 is a prime.

It is a super-2 number, since 2×123202310200312 (a number of 27 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 = 12320231019985 and 12320231020012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12320231020037) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32547575 + ... + 32923928.

It is an arithmetic number, because the mean of its divisors is an integer number (1680129735648).

Almost surely, 212320231020031 is an apocalyptic number.

12320231020031 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12320231020031 is a deficient number, since it is larger than the sum of its proper divisors (1120806865153).

12320231020031 is a wasteful number, since it uses less digits than its factorization.

12320231020031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65488621.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 12320231020031 its reverse (13002013202321), we get a palindrome (25322244222352).

The spelling of 12320231020031 in words is "twelve trillion, three hundred twenty billion, two hundred thirty-one million, twenty thousand, thirty-one".

Divisors: 1 11 17107 188177 65471503 720186533 1120021001821 12320231020031