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11031111132 = 2231019902119
BaseRepresentation
bin10100100011000000…
…10110010111011100
31001110202222111200120
422101200112113130
5140042431024012
65022334554540
7540234616566
oct122140262734
931422874616
1011031111132
114750858078
12217a368a50
13106a4cb2c2
1476908c336
1544868758c
hex2918165dc

11031111132 has 24 divisors (see below), whose sum is σ = 25764547200. Its totient is φ = 3673424496.

The previous prime is 11031111127. The next prime is 11031111137. The reversal of 11031111132 is 23111113011.

It is an interprime number because it is at equal distance from previous prime (11031111127) and next prime (11031111137).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11031111137) 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, 438832 + ... + 463287.

It is an arithmetic number, because the mean of its divisors is an integer number (1073522800).

Almost surely, 211031111132 is an apocalyptic number.

11031111132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11031111132 is an abundant number, since it is smaller than the sum of its proper divisors (14733436068).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11031111132 is a wasteful number, since it uses less digits than its factorization.

11031111132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 903145 (or 903143 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 15.

Adding to 11031111132 its reverse (23111113011), we get a palindrome (34142224143).

The spelling of 11031111132 in words is "eleven billion, thirty-one million, one hundred eleven thousand, one hundred thirty-two".

Divisors: 1 2 3 4 6 12 1019 2038 3057 4076 6114 12228 902119 1804238 2706357 3608476 5412714 10825428 919259261 1838518522 2757777783 3677037044 5515555566 11031111132