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23003211113 = 73315112481
BaseRepresentation
bin10101011011000110…
…010010010101101001
32012101010121012101222
4111123012102111221
5334102310223423
614322330351425
71443020032301
oct253306222551
965333535358
1023003211113
119834792a83
12455b88b575
13222794492c
1411830c6601
158e97463c8
hex55b192569

23003211113 has 4 divisors (see below), whose sum is σ = 23318323668. Its totient is φ = 22688098560.

The previous prime is 23003211107. The next prime is 23003211131. The reversal of 23003211113 is 31111230032.

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

It can be written as a sum of positive squares in 2 ways, for example, as 14600372224 + 8402838889 = 120832^2 + 91667^2 .

It is a cyclic number.

It is not a de Polignac number, because 23003211113 - 24 = 23003211097 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23003211091 and 23003211100.

It is not an unprimeable number, because it can be changed into a prime (23003211163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 157556168 + ... + 157556313.

It is an arithmetic number, because the mean of its divisors is an integer number (5829580917).

Almost surely, 223003211113 is an apocalyptic number.

It is an amenable number.

23003211113 is a deficient number, since it is larger than the sum of its proper divisors (315112555).

23003211113 is an equidigital number, since it uses as much as digits as its factorization.

23003211113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315112554.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 23003211113 its reverse (31111230032), we get a palindrome (54114441145).

The spelling of 23003211113 in words is "twenty-three billion, three million, two hundred eleven thousand, one hundred thirteen".

Divisors: 1 73 315112481 23003211113