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2023131121 = 111747230189
BaseRepresentation
bin111100010010110…
…1000011111110001
312012222212201011021
41320211220133301
513120410143441
6532430415441
7101064221314
oct17045503761
95188781137
102023131121
119490063a0
12485661581
132631b5a0b
1415299a97b
15bc9313d1
hex789687f1

2023131121 has 16 divisors (see below), whose sum is σ = 2386609920. Its totient is φ = 1694183680.

The previous prime is 2023131107. The next prime is 2023131127. The reversal of 2023131121 is 1211313202.

It is a cyclic number.

It is not a de Polignac number, because 2023131121 - 221 = 2021033969 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2023131095 and 2023131104.

It is not an unprimeable number, because it can be changed into a prime (2023131127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 106306 + ... + 123883.

It is an arithmetic number, because the mean of its divisors is an integer number (149163120).

Almost surely, 22023131121 is an apocalyptic number.

It is an amenable number.

2023131121 is a deficient number, since it is larger than the sum of its proper divisors (363478799).

2023131121 is a wasteful number, since it uses less digits than its factorization.

2023131121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230264.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 2023131121 is about 44979.2298844700. The cubic root of 2023131121 is about 1264.7596748018.

Adding to 2023131121 its reverse (1211313202), we get a palindrome (3234444323).

The spelling of 2023131121 in words is "two billion, twenty-three million, one hundred thirty-one thousand, one hundred twenty-one".

Divisors: 1 11 17 47 187 517 799 8789 230189 2532079 3913213 10818883 43045343 119007713 183921011 2023131121