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23013311323 = 99723082559
BaseRepresentation
bin10101011011101100…
…110100001101011011
32012101211121100021211
4111123230310031123
5334112401430243
614323331043551
71443201630052
oct253354641533
965354540254
1023013311323
11983a461462
1245631405b7
132229a6cca2
141184595399
158ea58dd9d
hex55bb3435b

23013311323 has 4 divisors (see below), whose sum is σ = 23036394880. Its totient is φ = 22990227768.

The previous prime is 23013311303. The next prime is 23013311327. The reversal of 23013311323 is 32311331032.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-23013311323 is a prime.

It is a super-2 number, since 2×230133113232 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23013311294 and 23013311303.

It is not an unprimeable number, because it can be changed into a prime (23013311327) 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, 11540283 + ... + 11542276.

It is an arithmetic number, because the mean of its divisors is an integer number (5759098720).

Almost surely, 223013311323 is an apocalyptic number.

23013311323 is a deficient number, since it is larger than the sum of its proper divisors (23083557).

23013311323 is an equidigital number, since it uses as much as digits as its factorization.

23013311323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23083556.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 23013311323 its reverse (32311331032), we get a palindrome (55324642355).

The spelling of 23013311323 in words is "twenty-three billion, thirteen million, three hundred eleven thousand, three hundred twenty-three".

Divisors: 1 997 23082559 23013311323