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1201232203 = 11091083167
BaseRepresentation
bin100011110011001…
…0101100101001011
310002201022220210121
41013212111211023
54430003412303
6315110324111
741524206463
oct10746254513
93081286717
101201232203
11567078596
12296359637
13161b362b2
14b5770ba3
15706d09bd
hex4799594b

1201232203 has 4 divisors (see below), whose sum is σ = 1202316480. Its totient is φ = 1200147928.

The previous prime is 1201232147. The next prime is 1201232243. The reversal of 1201232203 is 3022321021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3022321021 = 15120015371.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1201232203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1201232243) 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, 540475 + ... + 542692.

It is an arithmetic number, because the mean of its divisors is an integer number (300579120).

Almost surely, 21201232203 is an apocalyptic number.

1201232203 is a deficient number, since it is larger than the sum of its proper divisors (1084277).

1201232203 is a wasteful number, since it uses less digits than its factorization.

1201232203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1084276.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 1201232203 is about 34658.7969064132. The cubic root of 1201232203 is about 1063.0221700573.

Adding to 1201232203 its reverse (3022321021), we get a palindrome (4223553224).

The spelling of 1201232203 in words is "one billion, two hundred one million, two hundred thirty-two thousand, two hundred three".

Divisors: 1 1109 1083167 1201232203