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10231322031 = 33754133979
BaseRepresentation
bin10011000011101010…
…11001010110101111
3222102001001000022000
421201311121112233
5131423204301111
64411124423343
7511353542130
oct114165312657
928361030260
1010231322031
114380350747
121b96547b53
13c708c0408
146d0b79c87
153ed352c56
hex261d595af

10231322031 has 16 divisors (see below), whose sum is σ = 17322873600. Its totient is φ = 5846469624.

The previous prime is 10231322009. The next prime is 10231322039. The reversal of 10231322031 is 13022313201.

10231322031 is a `hidden beast` number, since 102 + 313 + 220 + 31 = 666.

It is not a de Polignac number, because 10231322031 - 29 = 10231321519 is a prime.

It is a super-2 number, since 2×102313220312 (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10231321995 and 10231322013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10231322039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27066801 + ... + 27067178.

It is an arithmetic number, because the mean of its divisors is an integer number (1082679600).

Almost surely, 210231322031 is an apocalyptic number.

10231322031 is a deficient number, since it is larger than the sum of its proper divisors (7091551569).

10231322031 is an equidigital number, since it uses as much as digits as its factorization.

10231322031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54133995 (or 54133989 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 10231322031 its reverse (13022313201), we get a palindrome (23253635232).

The spelling of 10231322031 in words is "ten billion, two hundred thirty-one million, three hundred twenty-two thousand, thirty-one".

Divisors: 1 3 7 9 21 27 63 189 54133979 162401937 378937853 487205811 1136813559 1461617433 3410440677 10231322031