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11111331230 = 258231350101
BaseRepresentation
bin10100101100100100…
…10111010110011110
31001200100221002222022
422112102113112132
5140224000044410
65034322220142
7542230520456
oct122622272636
931610832868
1011111331230
11479206967a
1221a11b4652
13108100790c
147759b0d66
15450731455
hex29649759e

11111331230 has 16 divisors (see below), whose sum is σ = 20024712864. Its totient is φ = 4439128800.

The previous prime is 11111331229. The next prime is 11111331247. The reversal of 11111331230 is 3213311111.

It is a junction number, because it is equal to n+sod(n) for n = 11111331199 and 11111331208.

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, 666821 + ... + 683280.

It is an arithmetic number, because the mean of its divisors is an integer number (1251544554).

Almost surely, 211111331230 is an apocalyptic number.

11111331230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11111331230 is a deficient number, since it is larger than the sum of its proper divisors (8913381634).

11111331230 is a wasteful number, since it uses less digits than its factorization.

11111331230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1350931.

The product of its (nonzero) digits is 54, while the sum is 17.

Adding to 11111331230 its reverse (3213311111), we get a palindrome (14324642341).

The spelling of 11111331230 in words is "eleven billion, one hundred eleven million, three hundred thirty-one thousand, two hundred thirty".

Divisors: 1 2 5 10 823 1646 4115 8230 1350101 2700202 6750505 13501010 1111133123 2222266246 5555665615 11111331230