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10121404321 = 76123703523
BaseRepresentation
bin10010110110100100…
…00101111110100001
3222010101012121112201
421123102011332201
5131212034414241
64352200453201
7505550342260
oct113322057641
928111177481
1010121404321
1143242a5966
121b6577a201
13c53bb6652
146c03265d7
153e388e931
hex25b485fa1

10121404321 has 8 divisors (see below), whose sum is σ = 11756947904. Its totient is φ = 8533267920.

The previous prime is 10121404297. The next prime is 10121404327. The reversal of 10121404321 is 12340412101.

10121404321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 10121404321 - 211 = 10121402273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10121404327) 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 7 ways as a sum of consecutive naturals, for example, 11851335 + ... + 11852188.

It is an arithmetic number, because the mean of its divisors is an integer number (1469618488).

Almost surely, 210121404321 is an apocalyptic number.

It is an amenable number.

10121404321 is a deficient number, since it is larger than the sum of its proper divisors (1635543583).

10121404321 is an equidigital number, since it uses as much as digits as its factorization.

10121404321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23703591.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 10121404321 its reverse (12340412101), we get a palindrome (22461816422).

The spelling of 10121404321 in words is "ten billion, one hundred twenty-one million, four hundred four thousand, three hundred twenty-one".

Divisors: 1 7 61 427 23703523 165924661 1445914903 10121404321