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12301230021 = 319215811053
BaseRepresentation
bin10110111010011010…
…11101111111000101
31011202021221020020220
423131031131333011
5200143103330041
65352350014553
7613556505243
oct133515357705
934667836226
1012301230021
1152427a6203
1224737a7459
1312106a3442
14849a31793
154bee23d66
hex2dd35dfc5

12301230021 has 8 divisors (see below), whose sum is σ = 17264884320. Its totient is φ = 7769197872.

The previous prime is 12301229977. The next prime is 12301230023. The reversal of 12301230021 is 12003210321.

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

It is not a de Polignac number, because 12301230021 - 27 = 12301229893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12301230023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107905470 + ... + 107905583.

It is an arithmetic number, because the mean of its divisors is an integer number (2158110540).

Almost surely, 212301230021 is an apocalyptic number.

It is an amenable number.

12301230021 is a deficient number, since it is larger than the sum of its proper divisors (4963654299).

12301230021 is a wasteful number, since it uses less digits than its factorization.

12301230021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215811075.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 12301230021 its reverse (12003210321), we get a palindrome (24304440342).

The spelling of 12301230021 in words is "twelve billion, three hundred one million, two hundred thirty thousand, twenty-one".

Divisors: 1 3 19 57 215811053 647433159 4100410007 12301230021