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11212130103 = 312729428163
BaseRepresentation
bin10100111000100101…
…11000011100110111
31001221101121020000220
422130102320130313
5140430301130403
65052322505423
7544563350646
oct123422703467
931841536026
1011212130103
114833a56329
12220ab05273
131098b6ac15
1478512d35d
154594e2953
hex29c4b8737

11212130103 has 8 divisors (see below), whose sum is σ = 15067219968. Its totient is φ = 7415896824.

The previous prime is 11212130029. The next prime is 11212130107. The reversal of 11212130103 is 30103121211.

It is a happy number.

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

It is not a de Polignac number, because 11212130103 - 28 = 11212129847 is a prime.

It is a super-2 number, since 2×112121301032 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11212130107) 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, 14713701 + ... + 14714462.

It is an arithmetic number, because the mean of its divisors is an integer number (1883402496).

Almost surely, 211212130103 is an apocalyptic number.

11212130103 is a deficient number, since it is larger than the sum of its proper divisors (3855089865).

11212130103 is a wasteful number, since it uses less digits than its factorization.

11212130103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29428293.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 11212130103 its reverse (30103121211), we get a palindrome (41315251314).

The spelling of 11212130103 in words is "eleven billion, two hundred twelve million, one hundred thirty thousand, one hundred three".

Divisors: 1 3 127 381 29428163 88284489 3737376701 11212130103