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23020211101 = 130643176207
BaseRepresentation
bin10101011100000111…
…001000101110011101
32012102022120220000011
4111130013020232131
5334121133223401
614324135003221
71443314365036
oct253407105635
965368526004
1023020211101
119843344358
124565509511
13222b3176b4
14118546da8d
158eaea3451
hex55c1c8b9d

23020211101 has 4 divisors (see below), whose sum is σ = 23020517952. Its totient is φ = 23019904252.

The previous prime is 23020211099. The next prime is 23020211111. The reversal of 23020211101 is 10111202032.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 23020211101 - 21 = 23020211099 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23020211111) 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, 42540 + ... + 218746.

It is an arithmetic number, because the mean of its divisors is an integer number (5755129488).

Almost surely, 223020211101 is an apocalyptic number.

It is an amenable number.

23020211101 is a deficient number, since it is larger than the sum of its proper divisors (306851).

23020211101 is a wasteful number, since it uses less digits than its factorization.

23020211101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306850.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 23020211101 its reverse (10111202032), we get a palindrome (33131413133).

The spelling of 23020211101 in words is "twenty-three billion, twenty million, two hundred eleven thousand, one hundred one".

Divisors: 1 130643 176207 23020211101