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2112031001 = 17231225787
BaseRepresentation
bin111110111100011…
…0000100100011001
312110012011021212102
41331320300210121
513311134443001
6545324053145
7103223652533
oct17570604431
95405137772
102112031001
11994206173
124ab3941b5
13278740cb2
141606dc853
15c5641e6b
hex7de30919

2112031001 has 4 divisors (see below), whose sum is σ = 2113258512. Its totient is φ = 2110803492.

The previous prime is 2112030997. The next prime is 2112031007. The reversal of 2112031001 is 1001302112.

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 2112031001 - 22 = 2112030997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2112031007) 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, 611171 + ... + 614616.

It is an arithmetic number, because the mean of its divisors is an integer number (528314628).

Almost surely, 22112031001 is an apocalyptic number.

It is an amenable number.

2112031001 is a deficient number, since it is larger than the sum of its proper divisors (1227511).

2112031001 is a wasteful number, since it uses less digits than its factorization.

2112031001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1227510.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 2112031001 is about 45956.8384574048. The cubic root of 2112031001 is about 1283.0200095416.

Adding to 2112031001 its reverse (1001302112), we get a palindrome (3113333113).

The spelling of 2112031001 in words is "two billion, one hundred twelve million, thirty-one thousand, one".

Divisors: 1 1723 1225787 2112031001