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130431131 is a prime number
BaseRepresentation
bin1111100011000…
…11100010011011
3100002102120212122
413301203202123
5231342244011
620535331455
73142434455
oct761434233
9302376778
10130431131
1167696926
1237820b8b
1321039aac
14134732d5
15b6b63db
hex7c6389b

130431131 has 2 divisors, whose sum is σ = 130431132. Its totient is φ = 130431130.

The previous prime is 130431107. The next prime is 130431149. The reversal of 130431131 is 131134031.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 130431131 - 226 = 63322267 is a prime.

It is a super-2 number, since 2×1304311312 = 34024559867878322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (130431151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65215565 + 65215566.

It is an arithmetic number, because the mean of its divisors is an integer number (65215566).

Almost surely, 2130431131 is an apocalyptic number.

130431131 is a deficient number, since it is larger than the sum of its proper divisors (1).

130431131 is an equidigital number, since it uses as much as digits as its factorization.

130431131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 130431131 is about 11420.6449467620. The cubic root of 130431131 is about 507.1390896575.

Adding to 130431131 its reverse (131134031), we get a palindrome (261565162).

The spelling of 130431131 in words is "one hundred thirty million, four hundred thirty-one thousand, one hundred thirty-one".