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1130023111 = 71050115373
BaseRepresentation
bin100001101011010…
…1100100011000111
32220202100010021211
41003112230203013
54303241214421
6304044152251
740001016010
oct10326544307
92822303254
101130023111
1152a9610a8
12276538687
13150163339
14aa116007
15693169e1
hex435ac8c7

1130023111 has 8 divisors (see below), whose sum is σ = 1291661984. Its totient is φ = 968436000.

The previous prime is 1130023087. The next prime is 1130023127. The reversal of 1130023111 is 1113200311.

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

It is not a de Polignac number, because 1130023111 - 25 = 1130023079 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1130023091 and 1130023100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1130023151) 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, 65821 + ... + 81193.

It is an arithmetic number, because the mean of its divisors is an integer number (161457748).

Almost surely, 21130023111 is an apocalyptic number.

1130023111 is a deficient number, since it is larger than the sum of its proper divisors (161638873).

1130023111 is a wasteful number, since it uses less digits than its factorization.

1130023111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25881.

The product of its (nonzero) digits is 18, while the sum is 13.

The square root of 1130023111 is about 33615.8163815785. The cubic root of 1130023111 is about 1041.5875381329.

Adding to 1130023111 its reverse (1113200311), we get a palindrome (2243223422).

The spelling of 1130023111 in words is "one billion, one hundred thirty million, twenty-three thousand, one hundred eleven".

Divisors: 1 7 10501 15373 73507 107611 161431873 1130023111