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20330223213131 = 132367994057569
BaseRepresentation
bin1001001111101011111111…
…01110111001101001001011
32122222112212012200211121222
410213311333232321221023
510131042244120310011
6111123324155352255
74165544612021246
oct447657756715113
978875765624558
1020330223213131
116528aa9aa5727
12234417275268b
13b461937cb7c0
14503db931025d
15253c80a60ddb
hex127d7fbb9a4b

20330223213131 has 8 divisors (see below), whose sum is σ = 22846003343520. Its totient is φ = 17950431197952.

The previous prime is 20330223213109. The next prime is 20330223213143. The reversal of 20330223213131 is 13131232203302.

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 20330223213131 - 26 = 20330223213067 is a prime.

It is a super-2 number, since 2×203302232131312 (a number of 27 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 20330223213131.

It is not an unprimeable number, because it can be changed into a prime (20330223213331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33997028486 + ... + 33997029083.

It is an arithmetic number, because the mean of its divisors is an integer number (2855750417940).

Almost surely, 220330223213131 is an apocalyptic number.

20330223213131 is a deficient number, since it is larger than the sum of its proper divisors (2515780130389).

20330223213131 is a wasteful number, since it uses less digits than its factorization.

20330223213131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67994057605.

The product of its (nonzero) digits is 3888, while the sum is 26.

Adding to 20330223213131 its reverse (13131232203302), we get a palindrome (33461455416433).

The spelling of 20330223213131 in words is "twenty trillion, three hundred thirty billion, two hundred twenty-three million, two hundred thirteen thousand, one hundred thirty-one".

Divisors: 1 13 23 299 67994057569 883922748397 1563863324087 20330223213131