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20122301321 = 109592731147
BaseRepresentation
bin10010101111011000…
…011111001110001001
31220221100122211010022
4102233120133032021
5312202302120241
613124414430225
71311435511343
oct225730371611
956840584108
1020122301321
1185965728a1
123a96b02375
131b88b29195
14d8c640293
157cb87854b
hex4af61f389

20122301321 has 8 divisors (see below), whose sum is σ = 20310987840. Its totient is φ = 19933689168.

The previous prime is 20122301279. The next prime is 20122301323. The reversal of 20122301321 is 12310322102.

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 20122301321 - 26 = 20122301257 is a prime.

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 20122301321.

It is not an unprimeable number, because it can be changed into a prime (20122301323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 630470 + ... + 661616.

It is an arithmetic number, because the mean of its divisors is an integer number (2538873480).

Almost surely, 220122301321 is an apocalyptic number.

It is an amenable number.

20122301321 is a deficient number, since it is larger than the sum of its proper divisors (188686519).

20122301321 is a wasteful number, since it uses less digits than its factorization.

20122301321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37183.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 20122301321 its reverse (12310322102), we get a palindrome (32432623423).

The spelling of 20122301321 in words is "twenty billion, one hundred twenty-two million, three hundred one thousand, three hundred twenty-one".

Divisors: 1 109 5927 31147 646043 3395023 184608269 20122301321