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203130202001 = 1911063508911
BaseRepresentation
bin1011110100101110000…
…0001110011110010001
3201102022111022102101212
42331023200032132101
511312002312431001
6233152225105505
720450520141236
oct2751340163621
9642274272355
10203130202001
1179168781301
123344ba88295
13162029900cc
149b8dadb78d
15543d1867bb
hex2f4b80e791

203130202001 has 4 divisors (see below), whose sum is σ = 204193711104. Its totient is φ = 202066692900.

The previous prime is 203130201931. The next prime is 203130202007. The reversal of 203130202001 is 100202031302.

It is a happy number.

203130202001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 a de Polignac number, because none of the positive numbers 2k-203130202001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (203130202007) 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 3 ways as a sum of consecutive naturals, for example, 531754265 + ... + 531754646.

It is an arithmetic number, because the mean of its divisors is an integer number (51048427776).

Almost surely, 2203130202001 is an apocalyptic number.

It is an amenable number.

203130202001 is a deficient number, since it is larger than the sum of its proper divisors (1063509103).

203130202001 is a wasteful number, since it uses less digits than its factorization.

203130202001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1063509102.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 203130202001 its reverse (100202031302), we get a palindrome (303332233303).

The spelling of 203130202001 in words is "two hundred three billion, one hundred thirty million, two hundred two thousand, one".

Divisors: 1 191 1063508911 203130202001