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10122032321 = 73138657977
BaseRepresentation
bin10010110110101000…
…11111010011000001
3222010102101111222222
421123110133103001
5131212220013241
64352222140425
7505555566212
oct113324372301
928112344888
1010122032321
114324694775
121b65a21715
13c5407644b
146c044b409
153e3965a4b
hex25b51f4c1

10122032321 has 4 divisors (see below), whose sum is σ = 10260690372. Its totient is φ = 9983374272.

The previous prime is 10122032293. The next prime is 10122032329. The reversal of 10122032321 is 12323022101.

10122032321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2974175296 + 7147857025 = 54536^2 + 84545^2 .

It is a cyclic number.

It is not a de Polignac number, because 10122032321 - 230 = 9048290497 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10122032321.

It is not an unprimeable number, because it can be changed into a prime (10122032329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69328916 + ... + 69329061.

It is an arithmetic number, because the mean of its divisors is an integer number (2565172593).

Almost surely, 210122032321 is an apocalyptic number.

It is an amenable number.

10122032321 is a deficient number, since it is larger than the sum of its proper divisors (138658051).

10122032321 is an equidigital number, since it uses as much as digits as its factorization.

10122032321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138658050.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 10122032321 its reverse (12323022101), we get a palindrome (22445054422).

The spelling of 10122032321 in words is "ten billion, one hundred twenty-two million, thirty-two thousand, three hundred twenty-one".

Divisors: 1 73 138657977 10122032321