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13033231103231 = 19753791012277
BaseRepresentation
bin1011110110101000100100…
…0111000011010011111111
31201010222001021200111000122
42331222021013003103333
53202014024130300411
643415214514245155
72513422421332313
oct275521107032377
951128037614018
1013033231103231
1141753a9200479
121565b168867bb
1373704a58c201
14330b51633b43
15179056ca49db
hexbda891c34ff

13033231103231 has 8 divisors (see below), whose sum is σ = 13721011031280. Its totient is φ = 12345633214848.

The previous prime is 13033231103219. The next prime is 13033231103237. The reversal of 13033231103231 is 13230113233031.

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-13033231103231 is a prime.

It is a super-2 number, since 2×130332311032312 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13033231103231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13033231103237) 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, 45362936 + ... + 45649341.

It is an arithmetic number, because the mean of its divisors is an integer number (1715126378910).

Almost surely, 213033231103231 is an apocalyptic number.

13033231103231 is a deficient number, since it is larger than the sum of its proper divisors (687779928049).

13033231103231 is an equidigital number, since it uses as much as digits as its factorization.

13033231103231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91019833.

The product of its (nonzero) digits is 2916, while the sum is 26.

Adding to 13033231103231 its reverse (13230113233031), we get a palindrome (26263344336262).

The spelling of 13033231103231 in words is "thirteen trillion, thirty-three billion, two hundred thirty-one million, one hundred three thousand, two hundred thirty-one".

Divisors: 1 19 7537 143203 91012277 1729233263 685959531749 13033231103231