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1212303320241 = 313103132579257
BaseRepresentation
bin10001101001000010111…
…010001010010010110001
311021220011111120112110220
4101221002322022102301
5124330244122221431
62324531403243253
7153405002125236
oct21510272122261
94256144515426
101212303320241
1142815368a752
12176b51b19529
138a420540660
144296654178d
1521804dc3b96
hex11a42e8a4b1

1212303320241 has 32 divisors (see below), whose sum is σ = 1743154898688. Its totient is φ = 744999889920.

The previous prime is 1212303320231. The next prime is 1212303320279. The reversal of 1212303320241 is 1420233032121.

It is not a de Polignac number, because 1212303320241 - 25 = 1212303320209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1212303320201) 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 31 ways as a sum of consecutive naturals, for example, 130956085 + ... + 130965341.

It is an arithmetic number, because the mean of its divisors is an integer number (54473590584).

Almost surely, 21212303320241 is an apocalyptic number.

It is an amenable number.

1212303320241 is a deficient number, since it is larger than the sum of its proper divisors (530851578447).

1212303320241 is a wasteful number, since it uses less digits than its factorization.

1212303320241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13561.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 1212303320241 its reverse (1420233032121), we get a palindrome (2632536352362).

The spelling of 1212303320241 in words is "one trillion, two hundred twelve billion, three hundred three million, three hundred twenty thousand, two hundred forty-one".

Divisors: 1 3 13 39 1031 3093 3257 9257 9771 13403 27771 40209 42341 120341 127023 361023 3357967 9543967 10073901 28631901 30150049 43653571 90450147 124071571 130960713 372214713 391950637 1175851911 31084700519 93254101557 404101106747 1212303320241