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1214431120211 = 1223992993557
BaseRepresentation
bin10001101011000001101…
…111000100101101010011
311022002122210101222022012
4101223001233010231103
5124344123331321321
62325522453333135
7153511510125551
oct21530157045523
94262583358265
101214431120211
11429045786321
121774466371ab
138a69c312caa
1442ac8d86bd1
15218cbacd05b
hex11ac1bc4b53

1214431120211 has 4 divisors (see below), whose sum is σ = 1215424114992. Its totient is φ = 1213438125432.

The previous prime is 1214431120193. The next prime is 1214431120241. The reversal of 1214431120211 is 1120211344121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1214431120211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1214431120241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 496495556 + ... + 496498001.

It is an arithmetic number, because the mean of its divisors is an integer number (303856028748).

Almost surely, 21214431120211 is an apocalyptic number.

1214431120211 is a deficient number, since it is larger than the sum of its proper divisors (992994781).

1214431120211 is an equidigital number, since it uses as much as digits as its factorization.

1214431120211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 992994780.

The product of its (nonzero) digits is 384, while the sum is 23.

Adding to 1214431120211 its reverse (1120211344121), we get a palindrome (2334642464332).

The spelling of 1214431120211 in words is "one trillion, two hundred fourteen billion, four hundred thirty-one million, one hundred twenty thousand, two hundred eleven".

Divisors: 1 1223 992993557 1214431120211