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23331131203 = 82128417943
BaseRepresentation
bin10101101110101001…
…001100111101000011
32020012222122021012111
4111232221030331003
5340240232144303
614415043040151
71454111225452
oct255651147503
966188567174
1023331131203
1199928a7216
124631670057
13227a869aa3
1411b4886b99
1591841cb6d
hex56ea4cf43

23331131203 has 4 divisors (see below), whose sum is σ = 23359549968. Its totient is φ = 23302712440.

The previous prime is 23331131171. The next prime is 23331131231. The reversal of 23331131203 is 30213113332.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 23331131203 - 25 = 23331131171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23331131273) 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, 14208151 + ... + 14209792.

It is an arithmetic number, because the mean of its divisors is an integer number (5839887492).

Almost surely, 223331131203 is an apocalyptic number.

23331131203 is a deficient number, since it is larger than the sum of its proper divisors (28418765).

23331131203 is an equidigital number, since it uses as much as digits as its factorization.

23331131203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28418764.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 23331131203 its reverse (30213113332), we get a palindrome (53544244535).

The spelling of 23331131203 in words is "twenty-three billion, three hundred thirty-one million, one hundred thirty-one thousand, two hundred three".

Divisors: 1 821 28417943 23331131203