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20233311123 = 37194992071
BaseRepresentation
bin10010110101111111…
…111101001110010011
31221020002112200221110
4102311333331032103
5312414211423443
613143422024403
71314254210154
oct226577751623
957202480843
1020233311123
1186431a4133
123b08118103
131ba5b2605c
14d9d29992b
157d64a5233
hex4b5ffd393

20233311123 has 8 divisors (see below), whose sum is σ = 27357716736. Its totient is φ = 13298889800.

The previous prime is 20233311097. The next prime is 20233311127. The reversal of 20233311123 is 32111333202.

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 20233311123 - 234 = 3053441939 is a prime.

It is a super-2 number, since 2×202333111232 (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20233311123.

It is not an unprimeable number, because it can be changed into a prime (20233311127) 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, 47495823 + ... + 47496248.

It is an arithmetic number, because the mean of its divisors is an integer number (3419714592).

Almost surely, 220233311123 is an apocalyptic number.

20233311123 is a deficient number, since it is larger than the sum of its proper divisors (7124405613).

20233311123 is an equidigital number, since it uses as much as digits as its factorization.

20233311123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94992145.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 20233311123 its reverse (32111333202), we get a palindrome (52344644325).

The spelling of 20233311123 in words is "twenty billion, two hundred thirty-three million, three hundred eleven thousand, one hundred twenty-three".

Divisors: 1 3 71 213 94992071 284976213 6744437041 20233311123