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11321030220 = 2235792388403
BaseRepresentation
bin10101000101100100…
…10011011001001100
31002012222111220220120
422202302103121030
5141141140431340
65111212544540
7550355112003
oct124262233114
932188456816
1011321030220
11488a476625
12223b482150
1310b55a9766
14795799c3a
15463d544d0
hex2a2c9364c

11321030220 has 48 divisors (see below), whose sum is σ = 32100149760. Its totient is φ = 2980725696.

The previous prime is 11321030219. The next prime is 11321030233. The reversal of 11321030220 is 2203012311.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 11321030220.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1189462 + ... + 1198941.

It is an arithmetic number, because the mean of its divisors is an integer number (668753120).

Almost surely, 211321030220 is an apocalyptic number.

11321030220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11321030220 is an abundant number, since it is smaller than the sum of its proper divisors (20779119540).

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

11321030220 is a wasteful number, since it uses less digits than its factorization.

11321030220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2388494 (or 2388492 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 11321030220 its reverse (2203012311), we get a palindrome (13524042531).

The spelling of 11321030220 in words is "eleven billion, three hundred twenty-one million, thirty thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 79 158 237 316 395 474 790 948 1185 1580 2370 4740 2388403 4776806 7165209 9553612 11942015 14330418 23884030 28660836 35826045 47768060 71652090 143304180 188683837 377367674 566051511 754735348 943419185 1132103022 1886838370 2264206044 2830257555 3773676740 5660515110 11321030220