Search a number
-
+
1012323121 = 5961281279
BaseRepresentation
bin111100010101101…
…101001100110001
32121112212100020221
4330111231030301
54033123314441
6244241333041
734041414235
oct7425551461
92545770227
101012323121
1147a480387
12243037181
13131963284
14986385c5
155dd178d1
hex3c56d331

1012323121 has 8 divisors (see below), whose sum is σ = 1046361600. Its totient is φ = 978847440.

The previous prime is 1012323079. The next prime is 1012323139. The reversal of 1012323121 is 1213232101.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1012323121 is a prime.

It is a super-2 number, since 2×10123231212 = 2049596202622361282, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1012323095 and 1012323104.

It is not an unprimeable number, because it can be changed into a prime (1012323421) 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, 137041 + ... + 144238.

It is an arithmetic number, because the mean of its divisors is an integer number (130795200).

Almost surely, 21012323121 is an apocalyptic number.

It is an amenable number.

1012323121 is a deficient number, since it is larger than the sum of its proper divisors (34038479).

1012323121 is an equidigital number, since it uses as much as digits as its factorization.

1012323121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281399.

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

The square root of 1012323121 is about 31817.0256466565. The cubic root of 1012323121 is about 1004.0909483200.

Adding to 1012323121 its reverse (1213232101), we get a palindrome (2225555222).

The spelling of 1012323121 in words is "one billion, twelve million, three hundred twenty-three thousand, one hundred twenty-one".

Divisors: 1 59 61 3599 281279 16595461 17158019 1012323121