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23003112121 = 113756518703
BaseRepresentation
bin10101011011000101…
…111010001010111001
32012101010102011121121
4111123011322022321
5334102244041441
614322324305241
71443016140553
oct253305721271
965333364547
1023003112121
119834725670
12455b842221
13222790b862
14118309c4d3
158e9726dd1
hex55b17a2b9

23003112121 has 8 divisors (see below), whose sum is σ = 25772529024. Its totient is φ = 20346732720.

The previous prime is 23003112103. The next prime is 23003112173. The reversal of 23003112121 is 12121130032.

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

It is a cyclic number.

It is not a de Polignac number, because 23003112121 - 229 = 22466241209 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23003112095 and 23003112104.

It is not an unprimeable number, because it can be changed into a prime (23003112101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28258945 + ... + 28259758.

It is an arithmetic number, because the mean of its divisors is an integer number (3221566128).

Almost surely, 223003112121 is an apocalyptic number.

It is an amenable number.

23003112121 is a deficient number, since it is larger than the sum of its proper divisors (2769416903).

23003112121 is a wasteful number, since it uses less digits than its factorization.

23003112121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56518751.

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

Adding to 23003112121 its reverse (12121130032), we get a palindrome (35124242153).

The spelling of 23003112121 in words is "twenty-three billion, three million, one hundred twelve thousand, one hundred twenty-one".

Divisors: 1 11 37 407 56518703 621705733 2091192011 23003112121