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1133231087 is a prime number
BaseRepresentation
bin100001110001011…
…1011101111101111
32220222101002210202
41003202323233233
54310101343322
6304241024115
740040206502
oct10342735757
92828332722
101133231087
1153175231a
1227762503b
13150a17551
14aa70d139
156974c292
hex438bbbef

1133231087 has 2 divisors, whose sum is σ = 1133231088. Its totient is φ = 1133231086.

The previous prime is 1133231081. The next prime is 1133231123. The reversal of 1133231087 is 7801323311.

It is a weak prime.

It is an emirp because it is prime and its reverse (7801323311) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1133231087 - 26 = 1133231023 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1133231081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 566615543 + 566615544.

It is an arithmetic number, because the mean of its divisors is an integer number (566615544).

Almost surely, 21133231087 is an apocalyptic number.

1133231087 is a deficient number, since it is larger than the sum of its proper divisors (1).

1133231087 is an equidigital number, since it uses as much as digits as its factorization.

1133231087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 1133231087 is about 33663.4978426188. The cubic root of 1133231087 is about 1042.5722468702.

Adding to 1133231087 its reverse (7801323311), we get a palindrome (8934554398).

The spelling of 1133231087 in words is "one billion, one hundred thirty-three million, two hundred thirty-one thousand, eighty-seven".