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101010031 is a prime number
BaseRepresentation
bin1100000010101…
…00101001101111
321001001211201021
412001110221233
5201324310111
614004555011
72334366613
oct601245157
9231054637
10101010031
1152021371
12299b2a67
1317c08465
14d5b5343
158d03d71
hex6054a6f

101010031 has 2 divisors, whose sum is σ = 101010032. Its totient is φ = 101010030.

The previous prime is 101009983. The next prime is 101010079. The reversal of 101010031 is 130010101.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (101009983) and next prime (101010079).

It is a cyclic number.

It is not a de Polignac number, because 101010031 - 213 = 101001839 is a prime.

It is a super-2 number, since 2×1010100312 = 20406052725241922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 101009996 and 101010023.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101010731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50505015 + 50505016.

It is an arithmetic number, because the mean of its divisors is an integer number (50505016).

Almost surely, 2101010031 is an apocalyptic number.

101010031 is a deficient number, since it is larger than the sum of its proper divisors (1).

101010031 is an equidigital number, since it uses as much as digits as its factorization.

101010031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3, while the sum is 7.

The square root of 101010031 is about 10050.3746696330. The cubic root of 101010031 is about 465.7163675843.

Adding to 101010031 its reverse (130010101), we get a palindrome (231020132).

The spelling of 101010031 in words is "one hundred one million, ten thousand, thirty-one".