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23130421131 = 320813705017
BaseRepresentation
bin10101100010101011…
…100011011110001011
32012200222222010202010
4111202223203132023
5334332341434011
614343113111003
71446123223056
oct254253433613
965628863663
1023130421131
11989a579824
1245963b8463
1322480c452c
141195d5ba9d
159059c31a6
hex562ae378b

23130421131 has 8 divisors (see below), whose sum is σ = 30855389904. Its totient is φ = 15412866560.

The previous prime is 23130421123. The next prime is 23130421157. The reversal of 23130421131 is 13112403132.

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 23130421131 - 23 = 23130421123 is a prime.

It is a super-2 number, since 2×231304211312 (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23130421098 and 23130421107.

It is not an unprimeable number, because it can be changed into a prime (23130421121) 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, 1846266 + ... + 1858751.

It is an arithmetic number, because the mean of its divisors is an integer number (3856923738).

Almost surely, 223130421131 is an apocalyptic number.

23130421131 is a deficient number, since it is larger than the sum of its proper divisors (7724968773).

23130421131 is a wasteful number, since it uses less digits than its factorization.

23130421131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3707101.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 23130421131 its reverse (13112403132), we get a palindrome (36242824263).

The spelling of 23130421131 in words is "twenty-three billion, one hundred thirty million, four hundred twenty-one thousand, one hundred thirty-one".

Divisors: 1 3 2081 6243 3705017 11115051 7710140377 23130421131