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20230213331 = 170331187707
BaseRepresentation
bin10010110101110100…
…001000111011010011
31221012212201022120102
4102311310020323103
5312412413311311
613143231403015
71314215655536
oct226564107323
957185638512
1020230213331
118641478779
123b0708346b
131ba52b0043
14d9cad0a1d
157d609243b
hex4b5d08ed3

20230213331 has 4 divisors (see below), whose sum is σ = 20231418072. Its totient is φ = 20229008592.

The previous prime is 20230213291. The next prime is 20230213369. The reversal of 20230213331 is 13331203202.

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

It is a cyclic number.

It is not a de Polignac number, because 20230213331 - 234 = 3050344147 is a prime.

It is a super-2 number, since 2×202302133312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20230213391) 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, 576821 + ... + 610886.

It is an arithmetic number, because the mean of its divisors is an integer number (5057854518).

Almost surely, 220230213331 is an apocalyptic number.

20230213331 is a deficient number, since it is larger than the sum of its proper divisors (1204741).

20230213331 is a wasteful number, since it uses less digits than its factorization.

20230213331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1204740.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 20230213331 its reverse (13331203202), we get a palindrome (33561416533).

The spelling of 20230213331 in words is "twenty billion, two hundred thirty million, two hundred thirteen thousand, three hundred thirty-one".

Divisors: 1 17033 1187707 20230213331