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21232342241 = 116353303827
BaseRepresentation
bin10011110001100010…
…111101010011100001
32000210201101201222222
4103301202331103201
5321440434422431
613430510440425
71351104634265
oct236142752341
960721351888
1021232342241
119006115a90
124146803115
132004ab4226
141055c340a5
1584404457b
hex4f18bd4e1

21232342241 has 8 divisors (see below), whose sum is σ = 23166277344. Its totient is φ = 19299027520.

The previous prime is 21232342211. The next prime is 21232342249. The reversal of 21232342241 is 14224323212.

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 21232342241 - 26 = 21232342177 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 21232342241.

It is not an unprimeable number, because it can be changed into a prime (21232342249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82031 + ... + 221796.

It is an arithmetic number, because the mean of its divisors is an integer number (2895784668).

Almost surely, 221232342241 is an apocalyptic number.

It is an amenable number.

21232342241 is a deficient number, since it is larger than the sum of its proper divisors (1933935103).

21232342241 is a wasteful number, since it uses less digits than its factorization.

21232342241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310191.

The product of its digits is 4608, while the sum is 26.

Adding to 21232342241 its reverse (14224323212), we get a palindrome (35456665453).

The spelling of 21232342241 in words is "twenty-one billion, two hundred thirty-two million, three hundred forty-two thousand, two hundred forty-one".

Divisors: 1 11 6353 69883 303827 3342097 1930212931 21232342241