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2013321197 is a prime number
BaseRepresentation
bin111100000000000…
…1101011111101101
312012022102022110202
41320000031133231
513110402234242
6531440243245
7100614643046
oct17000153755
95168368422
102013321197
11943516018
12482310525
1326115c824
141515658cd
15bbb44932
hex7800d7ed

2013321197 has 2 divisors, whose sum is σ = 2013321198. Its totient is φ = 2013321196.

The previous prime is 2013321161. The next prime is 2013321199. The reversal of 2013321197 is 7911233102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1319578276 + 693742921 = 36326^2 + 26339^2 .

It is a cyclic number.

It is not a de Polignac number, because 2013321197 - 28 = 2013320941 is a prime.

Together with 2013321199, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2013321199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1006660598 + 1006660599.

It is an arithmetic number, because the mean of its divisors is an integer number (1006660599).

Almost surely, 22013321197 is an apocalyptic number.

It is an amenable number.

2013321197 is a deficient number, since it is larger than the sum of its proper divisors (1).

2013321197 is an equidigital number, since it uses as much as digits as its factorization.

2013321197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2268, while the sum is 29.

The square root of 2013321197 is about 44870.0478827469. The cubic root of 2013321197 is about 1262.7121383483.

Adding to 2013321197 its reverse (7911233102), we get a palindrome (9924554299).

The spelling of 2013321197 in words is "two billion, thirteen million, three hundred twenty-one thousand, one hundred ninety-seven".