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23032203121 = 971811311853
BaseRepresentation
bin10101011100110100…
…111000011101110001
32012110011011010222001
4111130310320131301
5334132220444441
614325244014001
71443521332144
oct253464703561
965404133861
1023032203121
11984a095114
124569531301
132230955b75
141186cb205b
158ec071731
hex55cd38771

23032203121 has 8 divisors (see below), whose sum is σ = 23398227944. Its totient is φ = 22668802560.

The previous prime is 23032203053. The next prime is 23032203157. The reversal of 23032203121 is 12130223032.

It can be written as a sum of positive squares in 4 ways, for example, as 129618225 + 22902584896 = 11385^2 + 151336^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 23032203121 - 225 = 22998648689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23032203221) 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, 638370 + ... + 673483.

It is an arithmetic number, because the mean of its divisors is an integer number (2924778493).

Almost surely, 223032203121 is an apocalyptic number.

It is an amenable number.

23032203121 is a deficient number, since it is larger than the sum of its proper divisors (366024823).

23032203121 is a wasteful number, since it uses less digits than its factorization.

23032203121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1312131.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 23032203121 its reverse (12130223032), we get a palindrome (35162426153).

The spelling of 23032203121 in words is "twenty-three billion, thirty-two million, two hundred three thousand, one hundred twenty-one".

Divisors: 1 97 181 17557 1311853 127249741 237445393 23032203121