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1230313422421 = 1916441431531
BaseRepresentation
bin10001111001110100011…
…001001111111001010101
311100121122122202112002101
4101321310121033321111
5130124140214004141
62341110450242101
7154613212353616
oct21716431177125
94317578675071
101230313422421
11434855942016
1217a539586331
138c03089a155
144379443bc0d
152200b0c5531
hex11e7464fe55

1230313422421 has 4 divisors (see below), whose sum is σ = 1236754854144. Its totient is φ = 1223871990700.

The previous prime is 1230313422419. The next prime is 1230313422449. The reversal of 1230313422421 is 1242243130321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1230313422421 - 21 = 1230313422419 is a prime.

It is a super-2 number, since 2×12303134224212 (a number of 25 digits) contains 22 as substring.

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 1230313422421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230313462421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3220715575 + ... + 3220715956.

It is an arithmetic number, because the mean of its divisors is an integer number (309188713536).

Almost surely, 21230313422421 is an apocalyptic number.

It is an amenable number.

1230313422421 is a deficient number, since it is larger than the sum of its proper divisors (6441431723).

1230313422421 is an equidigital number, since it uses as much as digits as its factorization.

1230313422421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6441431722.

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 1230313422421 its reverse (1242243130321), we get a palindrome (2472556552742).

The spelling of 1230313422421 in words is "one trillion, two hundred thirty billion, three hundred thirteen million, four hundred twenty-two thousand, four hundred twenty-one".

Divisors: 1 191 6441431531 1230313422421