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1111102131 = 32663139079
BaseRepresentation
bin100001000111010…
…0001001010110011
32212102201211120210
41002032201022303
54233420232011
6302130435203
736351132546
oct10216411263
92772654523
101111102131
11520208527
12270132b03
1314926a0a9
14a77cc85d
156782a6a6
hex423a12b3

1111102131 has 8 divisors (see below), whose sum is σ = 1482036480. Its totient is φ = 740451272.

The previous prime is 1111102103. The next prime is 1111102141. The reversal of 1111102131 is 1312011111.

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 1111102131 - 218 = 1110839987 is a prime.

It is a super-2 number, since 2×11111021312 = 2469095891025482322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1111102141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61551 + ... + 77528.

It is an arithmetic number, because the mean of its divisors is an integer number (185254560).

Almost surely, 21111102131 is an apocalyptic number.

1111102131 is a deficient number, since it is larger than the sum of its proper divisors (370934349).

1111102131 is a wasteful number, since it uses less digits than its factorization.

1111102131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141745.

The product of its (nonzero) digits is 6, while the sum is 12.

The square root of 1111102131 is about 33333.1986313945. The cubic root of 1111102131 is about 1035.7413783145.

Adding to 1111102131 its reverse (1312011111), we get a palindrome (2423113242).

The spelling of 1111102131 in words is "one billion, one hundred eleven million, one hundred two thousand, one hundred thirty-one".

Divisors: 1 3 2663 7989 139079 417237 370367377 1111102131