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23223030121 = 76651302971
BaseRepresentation
bin10101101000001100…
…110101000101101001
32012221110020011101201
4111220030311011221
5340030043430441
614400222044201
71451326333114
oct255014650551
965843204351
1023223030121
119937882285
124601419661
13226134ab55
1411a438757b
1590dbb7c31
hex568335169

23223030121 has 4 divisors (see below), whose sum is σ = 23223409744. Its totient is φ = 23222650500.

The previous prime is 23223030119. The next prime is 23223030137. The reversal of 23223030121 is 12103032232.

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 23223030121 - 21 = 23223030119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23223031121) 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, 74835 + ... + 228136.

It is an arithmetic number, because the mean of its divisors is an integer number (5805852436).

Almost surely, 223223030121 is an apocalyptic number.

It is an amenable number.

23223030121 is a deficient number, since it is larger than the sum of its proper divisors (379623).

23223030121 is an equidigital number, since it uses as much as digits as its factorization.

23223030121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379622.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 23223030121 its reverse (12103032232), we get a palindrome (35326062353).

The spelling of 23223030121 in words is "twenty-three billion, two hundred twenty-three million, thirty thousand, one hundred twenty-one".

Divisors: 1 76651 302971 23223030121