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12312231320233 = 135718471656203
BaseRepresentation
bin1011001100101010101000…
…1011001001101010101001
31121121001000120101120121001
42303022222023021222221
53103210422204221413
642104054434515001
72410346366313535
oct263125213115251
947531016346531
1012312231320233
113a17651668019
12146a239435a61
136b4066585190
14307cb5354bc5
151654092e44dd
hexb32aa2c9aa9

12312231320233 has 8 divisors (see below), whose sum is σ = 13259357229888. Its totient is φ = 11365109866704.

The previous prime is 12312231320209. The next prime is 12312231320321. The reversal of 12312231320233 is 33202313221321.

It is a happy number.

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 12312231320233 - 213 = 12312231312041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12312231720233) 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, 6605910 + ... + 8262112.

It is an arithmetic number, because the mean of its divisors is an integer number (1657419653736).

Almost surely, 212312231320233 is an apocalyptic number.

12312231320233 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

12312231320233 is a deficient number, since it is larger than the sum of its proper divisors (947125909655).

12312231320233 is a wasteful number, since it uses less digits than its factorization.

12312231320233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2228063.

The product of its (nonzero) digits is 7776, while the sum is 28.

Adding to 12312231320233 its reverse (33202313221321), we get a palindrome (45514544541554).

The spelling of 12312231320233 in words is "twelve trillion, three hundred twelve billion, two hundred thirty-one million, three hundred twenty thousand, two hundred thirty-three".

Divisors: 1 13 571847 1656203 7434011 21530639 947094716941 12312231320233