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23123103211 = 137922515193
BaseRepresentation
bin10101100010001111…
…101000110111101011
32012200111012100110001
4111202033220313223
5334324003300321
614342252203431
71446004064035
oct254217506753
965614170401
1023123103211
11989643075a
124593a69577
1322467316c0
141194db4c55
15905029c91
hex5623e8deb

23123103211 has 8 divisors (see below), whose sum is σ = 25217017280. Its totient is φ = 21074219712.

The previous prime is 23123103209. The next prime is 23123103217. The reversal of 23123103211 is 11230132132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 23123103211 - 21 = 23123103209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23123103217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11256570 + ... + 11258623.

It is an arithmetic number, because the mean of its divisors is an integer number (3152127160).

Almost surely, 223123103211 is an apocalyptic number.

23123103211 is a deficient number, since it is larger than the sum of its proper divisors (2093914069).

23123103211 is a wasteful number, since it uses less digits than its factorization.

23123103211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22515285.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 23123103211 its reverse (11230132132), we get a palindrome (34353235343).

The spelling of 23123103211 in words is "twenty-three billion, one hundred twenty-three million, one hundred three thousand, two hundred eleven".

Divisors: 1 13 79 1027 22515193 292697509 1778700247 23123103211