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23104324321 = 131777255717
BaseRepresentation
bin10101100001001000…
…000000001011100001
32012122011212021122121
4111201020000023201
5334304201334241
614340341504241
71445355342061
oct254110001341
965564767577
1023104324321
119886874911
124589712081
132242888030
1411926c73a1
1590356aad1
hex5612002e1

23104324321 has 4 divisors (see below), whose sum is σ = 24881580052. Its totient is φ = 21327068592.

The previous prime is 23104324319. The next prime is 23104324337. The reversal of 23104324321 is 12342340132.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8852739921 + 14251584400 = 94089^2 + 119380^2 .

It is a cyclic number.

It is not a de Polignac number, because 23104324321 - 21 = 23104324319 is a prime.

It is a super-2 number, since 2×231043243212 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23104324921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 888627846 + ... + 888627871.

It is an arithmetic number, because the mean of its divisors is an integer number (6220395013).

Almost surely, 223104324321 is an apocalyptic number.

It is an amenable number.

23104324321 is a deficient number, since it is larger than the sum of its proper divisors (1777255731).

23104324321 is a wasteful number, since it uses less digits than its factorization.

23104324321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1777255730.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 23104324321 its reverse (12342340132), we get a palindrome (35446664453).

The spelling of 23104324321 in words is "twenty-three billion, one hundred four million, three hundred twenty-four thousand, three hundred twenty-one".

Divisors: 1 13 1777255717 23104324321