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1232320231213 = 3194142244703
BaseRepresentation
bin10001111011101100000…
…000100111011100101101
311100210211111220222012221
4101323230000213130231
5130142242434344323
62342041535155341
7155014021064251
oct21735400473455
94323744828187
101232320231213
1143569570a185
1217a9b9675b51
138c290589686
1443904b8a261
15220c738055d
hex11eec02772d

1232320231213 has 8 divisors (see below), whose sum is σ = 1273424357376. Its totient is φ = 1191300596400.

The previous prime is 1232320231199. The next prime is 1232320231217. The reversal of 1232320231213 is 3121320232321.

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 1232320231213 - 225 = 1232286676781 is a prime.

It is a super-2 number, since 2×12323202312132 (a number of 25 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 (1232320231217) 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, 21093181 + ... + 21151522.

It is an arithmetic number, because the mean of its divisors is an integer number (159178044672).

Almost surely, 21232320231213 is an apocalyptic number.

It is an amenable number.

1232320231213 is a deficient number, since it is larger than the sum of its proper divisors (41104126163).

1232320231213 is an equidigital number, since it uses as much as digits as its factorization.

1232320231213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42245675.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 1232320231213 its reverse (3121320232321), we get a palindrome (4353640463534).

The spelling of 1232320231213 in words is "one trillion, two hundred thirty-two billion, three hundred twenty million, two hundred thirty-one thousand, two hundred thirteen".

Divisors: 1 31 941 29171 42244703 1309585793 39752265523 1232320231213