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20123102201 = 231580955343
BaseRepresentation
bin10010101111011011…
…100010101111111001
31220221102011111201112
4102233123202233321
5312203003232301
613124443530105
71311445355306
oct225733425771
956842144645
1020123102201
118596a6a584
123a97229935
131b89049887
14d8c7ac0ad
157cb9859bb
hex4af6e2bf9

20123102201 has 8 divisors (see below), whose sum is σ = 20999727360. Its totient is φ = 19246619392.

The previous prime is 20123102189. The next prime is 20123102239. The reversal of 20123102201 is 10220132102.

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 20123102201 - 210 = 20123101177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20123102101) 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, 335936 + ... + 391278.

It is an arithmetic number, because the mean of its divisors is an integer number (2624965920).

Almost surely, 220123102201 is an apocalyptic number.

It is an amenable number.

20123102201 is a deficient number, since it is larger than the sum of its proper divisors (876625159).

20123102201 is a wasteful number, since it uses less digits than its factorization.

20123102201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71175.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 20123102201 its reverse (10220132102), we get a palindrome (30343234303).

The spelling of 20123102201 in words is "twenty billion, one hundred twenty-three million, one hundred two thousand, two hundred one".

Divisors: 1 23 15809 55343 363607 1272889 874917487 20123102201