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2130312323 is a prime number
BaseRepresentation
bin111111011111001…
…1111110010000011
312111110120002010102
41332332133302003
513330324443243
6551215553015
7103535233046
oct17676376203
95443502112
102130312323
119a35621a7
124b552b76b
1327c472049
14162cdac5d
15c70539b8
hex7ef9fc83

2130312323 has 2 divisors, whose sum is σ = 2130312324. Its totient is φ = 2130312322.

The previous prime is 2130312299. The next prime is 2130312377. The reversal of 2130312323 is 3232130312.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2130312323 - 218 = 2130050179 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 2130312295 and 2130312304.

It is not a weakly prime, because it can be changed into another prime (2130362323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1065156161 + 1065156162.

It is an arithmetic number, because the mean of its divisors is an integer number (1065156162).

Almost surely, 22130312323 is an apocalyptic number.

2130312323 is a deficient number, since it is larger than the sum of its proper divisors (1).

2130312323 is an equidigital number, since it uses as much as digits as its factorization.

2130312323 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 2130312323 is about 46155.3065529848. The cubic root of 2130312323 is about 1286.7112354543.

Adding to 2130312323 its reverse (3232130312), we get a palindrome (5362442635).

The spelling of 2130312323 in words is "two billion, one hundred thirty million, three hundred twelve thousand, three hundred twenty-three".