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30232121123 = 61691171713
BaseRepresentation
bin11100001001111110…
…011000111100100011
32220000221001212200202
4130021332120330203
5443403410333443
621515523135415
72120115534551
oct341176307443
986027055622
1030232121123
1111904276076
125a3881456b
132b0a4b7989
14166b1ccbd1
15bbe1ca7b8
hex709f98f23

30232121123 has 8 divisors (see below), whose sum is σ = 30732604416. Its totient is φ = 29731795200.

The previous prime is 30232121113. The next prime is 30232121137. The reversal of 30232121123 is 32112123203.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30232121123 - 228 = 29963685667 is a prime.

It is a super-2 number, since 2×302321211232 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30232121095 and 30232121104.

It is not an unprimeable number, because it can be changed into a prime (30232121113) 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 7 ways as a sum of consecutive naturals, for example, 385715 + ... + 457427.

It is an arithmetic number, because the mean of its divisors is an integer number (3841575552).

Almost surely, 230232121123 is an apocalyptic number.

30232121123 is a deficient number, since it is larger than the sum of its proper divisors (500483293).

30232121123 is an equidigital number, since it uses as much as digits as its factorization.

30232121123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78685.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 30232121123 its reverse (32112123203), we get a palindrome (62344244326).

The spelling of 30232121123 in words is "thirty billion, two hundred thirty-two million, one hundred twenty-one thousand, one hundred twenty-three".

Divisors: 1 61 6911 71713 421571 4374493 495608543 30232121123