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23014031321 = 131909174469
BaseRepresentation
bin10101011011101111…
…100011111111011001
32012101212221220221102
4111123233203333121
5334113043000241
614323354321145
71443211016141
oct253357437731
965355856842
1023014031321
11983a9033a6
1245634291b5
132229c62918
141184701921
158ea68239b
hex55bbe3fd9

23014031321 has 4 divisors (see below), whose sum is σ = 23014337700. Its totient is φ = 23013724944.

The previous prime is 23014031309. The next prime is 23014031353. The reversal of 23014031321 is 12313041032.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 14169569296 + 8844462025 = 119036^2 + 94045^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-23014031321 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23014031293 and 23014031302.

It is not an unprimeable number, because it can be changed into a prime (23014034321) 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, 44675 + ... + 219143.

It is an arithmetic number, because the mean of its divisors is an integer number (5753584425).

Almost surely, 223014031321 is an apocalyptic number.

It is an amenable number.

23014031321 is a deficient number, since it is larger than the sum of its proper divisors (306379).

23014031321 is a wasteful number, since it uses less digits than its factorization.

23014031321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306378.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 23014031321 its reverse (12313041032), we get a palindrome (35327072353).

The spelling of 23014031321 in words is "twenty-three billion, fourteen million, thirty-one thousand, three hundred twenty-one".

Divisors: 1 131909 174469 23014031321