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13212323122330 = 251321232312233
BaseRepresentation
bin1100000001000011101111…
…0100111000110010011010
31201210002022111220200122001
43000100323310320302122
53212432314204403310
644033354001551214
72532362453353633
oct300207364706232
951702274820561
1013212323122330
114234350a5a112
12159477834550a
1374abbc074547
143396a09d688a
1517da3990693a
hexc043bd38c9a

13212323122330 has 8 divisors (see below), whose sum is σ = 23782181620212. Its totient is φ = 5284929248928.

The previous prime is 13212323122321. The next prime is 13212323122333. The reversal of 13212323122330 is 3322132321231.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 12852590672601 + 359732449729 = 3585051^2 + 599777^2 .

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

It is not an unprimeable number, because it can be changed into a prime (13212323122333) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 660616156107 + ... + 660616156126.

Almost surely, 213212323122330 is an apocalyptic number.

13212323122330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13212323122330 is a deficient number, since it is larger than the sum of its proper divisors (10569858497882).

13212323122330 is a wasteful number, since it uses less digits than its factorization.

13212323122330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1321232312240.

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

Adding to 13212323122330 its reverse (3322132321231), we get a palindrome (16534455443561).

The spelling of 13212323122330 in words is "thirteen trillion, two hundred twelve billion, three hundred twenty-three million, one hundred twenty-two thousand, three hundred thirty".

Divisors: 1 2 5 10 1321232312233 2642464624466 6606161561165 13212323122330