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BaseRepresentation
bin1111011111111…
…11111001110111
3100001122212001211
413233333321313
5231241214111
620522502251
73136114615
oct757777167
9301585054
10130023031
1167438256
1237664987
1320c26108
14133a86b5
15b635521
hex7bffe77

130023031 has 2 divisors, whose sum is σ = 130023032. Its totient is φ = 130023030.

The previous prime is 130023007. The next prime is 130023041. The reversal of 130023031 is 130320031.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 130023031 - 211 = 130020983 is a prime.

It is a super-2 number, since 2×1300230312 = 33811977180853922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (130023041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65011515 + 65011516.

It is an arithmetic number, because the mean of its divisors is an integer number (65011516).

Almost surely, 2130023031 is an apocalyptic number.

130023031 is a deficient number, since it is larger than the sum of its proper divisors (1).

130023031 is an equidigital number, since it uses as much as digits as its factorization.

130023031 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 130023031 is about 11402.7641824252. The cubic root of 130023031 is about 506.6096156234.

Adding to 130023031 its reverse (130320031), we get a palindrome (260343062).

The spelling of 130023031 in words is "one hundred thirty million, twenty-three thousand, thirty-one".