Search a number
-
+
20031212021201 = 227706912483127
BaseRepresentation
bin1001000110111111000010…
…10001101110010111010001
32121220222001121101110112222
410203133201101232113101
510111142410234134301
6110334113424030425
74135131051564143
oct443374121562721
977828047343488
1020031212021201
116423209a78587
1222b6224462415
13b23c207bbb34
144d3731644c93
1524b0d00c231b
hex1237e146e5d1

20031212021201 has 8 divisors (see below), whose sum is σ = 20122303010880. Its totient is φ = 19940146012368.

The previous prime is 20031212021179. The next prime is 20031212021207. The reversal of 20031212021201 is 10212021213002.

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 20031212021201 - 210 = 20031212020177 is a prime.

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 20031212021201.

It is not an unprimeable number, because it can be changed into a prime (20031212021207) 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 7 ways as a sum of consecutive naturals, for example, 4636901 + ... + 7846226.

It is an arithmetic number, because the mean of its divisors is an integer number (2515287876360).

Almost surely, 220031212021201 is an apocalyptic number.

It is an amenable number.

20031212021201 is a deficient number, since it is larger than the sum of its proper divisors (91090989679).

20031212021201 is a wasteful number, since it uses less digits than its factorization.

20031212021201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12490423.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 20031212021201 its reverse (10212021213002), we get a palindrome (30243233234203).

The spelling of 20031212021201 in words is "twenty trillion, thirty-one billion, two hundred twelve million, twenty-one thousand, two hundred one".

Divisors: 1 227 7069 1604663 12483127 2833669829 88243224763 20031212021201