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11031120212 = 2271013900679
BaseRepresentation
bin10100100011000000…
…11000100101010100
31001110202222222010212
422101200120211110
5140042431321322
65022335104552
7540234655220
oct122140304524
931422888125
1011031120212
114750863982
12217a372158
13106a502488
14769091780
1544868a0e2
hex291818954

11031120212 has 24 divisors (see below), whose sum is σ = 22280684160. Its totient is φ = 4680813600.

The previous prime is 11031120173. The next prime is 11031120223. The reversal of 11031120212 is 21202113011.

It is a super-2 number, since 2×110311202122 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1947512 + ... + 1953167.

It is an arithmetic number, because the mean of its divisors is an integer number (928361840).

Almost surely, 211031120212 is an apocalyptic number.

It is an amenable number.

11031120212 is an abundant number, since it is smaller than the sum of its proper divisors (11249563948).

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

11031120212 is a wasteful number, since it uses less digits than its factorization.

11031120212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3900791 (or 3900789 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 11031120212 its reverse (21202113011), we get a palindrome (32233233223).

The spelling of 11031120212 in words is "eleven billion, thirty-one million, one hundred twenty thousand, two hundred twelve".

Divisors: 1 2 4 7 14 28 101 202 404 707 1414 2828 3900679 7801358 15602716 27304753 54609506 109219012 393968579 787937158 1575874316 2757780053 5515560106 11031120212