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20232231001 = 191105927911
BaseRepresentation
bin10010110101111011…
…110101100001011001
31221020000111211021221
4102311323311201121
5312413422343001
613143342532041
71314242061133
oct226573654131
957200454257
1020232231001
118642626674
123b07897021
131ba5838528
14d9d098053
157d63401a1
hex4b5ef5859

20232231001 has 4 divisors (see below), whose sum is σ = 20338159104. Its totient is φ = 20126302900.

The previous prime is 20232230983. The next prime is 20232231007. The reversal of 20232231001 is 10013223202.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20232231001 - 25 = 20232230969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20232231007) 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, 52963765 + ... + 52964146.

It is an arithmetic number, because the mean of its divisors is an integer number (5084539776).

Almost surely, 220232231001 is an apocalyptic number.

It is an amenable number.

20232231001 is a deficient number, since it is larger than the sum of its proper divisors (105928103).

20232231001 is a wasteful number, since it uses less digits than its factorization.

20232231001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105928102.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 20232231001 its reverse (10013223202), we get a palindrome (30245454203).

The spelling of 20232231001 in words is "twenty billion, two hundred thirty-two million, two hundred thirty-one thousand, one".

Divisors: 1 191 105927911 20232231001