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20120112301 = 191058953279
BaseRepresentation
bin10010101111010000…
…001000110010101101
31220221012112121100111
4102233100020302231
5312201222043201
613124255500021
71311411063352
oct225720106255
956835477314
1020120112301
118595308193
123a96227611
131b885409c3
14d8c230629
157cb594b51
hex4af408cad

20120112301 has 4 divisors (see below), whose sum is σ = 21179065600. Its totient is φ = 19061159004.

The previous prime is 20120112281. The next prime is 20120112307. The reversal of 20120112301 is 10321102102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20120112301 - 215 = 20120079533 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20120112307) 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, 529476621 + ... + 529476658.

It is an arithmetic number, because the mean of its divisors is an integer number (5294766400).

Almost surely, 220120112301 is an apocalyptic number.

It is an amenable number.

20120112301 is a deficient number, since it is larger than the sum of its proper divisors (1058953299).

20120112301 is a wasteful number, since it uses less digits than its factorization.

20120112301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1058953298.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 20120112301 its reverse (10321102102), we get a palindrome (30441214403).

The spelling of 20120112301 in words is "twenty billion, one hundred twenty million, one hundred twelve thousand, three hundred one".

Divisors: 1 19 1058953279 20120112301