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23011102213 = 112091918383
BaseRepresentation
bin10101011011100100…
…011000111000000101
32012101200110002221221
4111123210120320011
5334111320232323
614323211440341
71443144066361
oct253344307005
965350402857
1023011102213
119839192750
1245624560b1
132229478618
14118417c2a1
158ea2a455d
hex55b918e05

23011102213 has 4 divisors (see below), whose sum is σ = 25103020608. Its totient is φ = 20919183820.

The previous prime is 23011102211. The next prime is 23011102241. The reversal of 23011102213 is 31220111032.

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 23011102213 - 21 = 23011102211 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 (23011102211) 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, 1045959181 + ... + 1045959202.

It is an arithmetic number, because the mean of its divisors is an integer number (6275755152).

Almost surely, 223011102213 is an apocalyptic number.

It is an amenable number.

23011102213 is a deficient number, since it is larger than the sum of its proper divisors (2091918395).

23011102213 is a wasteful number, since it uses less digits than its factorization.

23011102213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2091918394.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 23011102213 its reverse (31220111032), we get a palindrome (54231213245).

The spelling of 23011102213 in words is "twenty-three billion, eleven million, one hundred two thousand, two hundred thirteen".

Divisors: 1 11 2091918383 23011102213