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203231000001 = 3149294537723
BaseRepresentation
bin1011110101000110000…
…0101111010111000001
3201102120111222111021010
42331101200233113001
511312204114000001
6233210225351133
720453152666041
oct2752140572701
9642514874233
10203231000001
117920a668337
12334797984a9
131621a822bb3
149b9d259721
155446e478d6
hex2f5182f5c1

203231000001 has 8 divisors (see below), whose sum is σ = 270992877280. Its totient is φ = 135478228032.

The previous prime is 203230999997. The next prime is 203231000003. The reversal of 203231000001 is 100000132302.

It is a happy number.

203231000001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 203231000001 - 22 = 203230999997 is a prime.

It is a super-2 number, since 2×2032310000012 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (203231000003) 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 7 ways as a sum of consecutive naturals, for example, 2224075 + ... + 2313648.

It is an arithmetic number, because the mean of its divisors is an integer number (33874109660).

Almost surely, 2203231000001 is an apocalyptic number.

It is an amenable number.

203231000001 is a deficient number, since it is larger than the sum of its proper divisors (67761877279).

203231000001 is a wasteful number, since it uses less digits than its factorization.

203231000001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4552655.

The product of its (nonzero) digits is 36, while the sum is 12.

Adding to 203231000001 its reverse (100000132302), we get a palindrome (303231132303).

The spelling of 203231000001 in words is "two hundred three billion, two hundred thirty-one million, one", and thus it is an aban number.

Divisors: 1 3 14929 44787 4537723 13613169 67743666667 203231000001