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130031023 is a prime number
BaseRepresentation
bin1111100000000…
…01110110101111
3100001200021000211
413300001312233
5231241443043
620523003251
73136150123
oct760016657
9301607024
10130031023
1167443261
1237669527
1320c29945
14133ab583
15b637a9d
hex7c01daf

130031023 has 2 divisors, whose sum is σ = 130031024. Its totient is φ = 130031022.

The previous prime is 130031017. The next prime is 130031051. The reversal of 130031023 is 320130031.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 130031023 - 25 = 130030991 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 130030994 and 130031012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (130031053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65015511 + 65015512.

It is an arithmetic number, because the mean of its divisors is an integer number (65015512).

Almost surely, 2130031023 is an apocalyptic number.

130031023 is a deficient number, since it is larger than the sum of its proper divisors (1).

130031023 is an equidigital number, since it uses as much as digits as its factorization.

130031023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54, while the sum is 13.

The square root of 130031023 is about 11403.1146183839. The cubic root of 130031023 is about 506.6199951720.

Adding to 130031023 its reverse (320130031), we get a palindrome (450161054).

It can be divided in two parts, 1300 and 31023, that added together give a palindrome (32323).

The spelling of 130031023 in words is "one hundred thirty million, thirty-one thousand, twenty-three".