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12111202330 = 251211120233
BaseRepresentation
bin10110100011110001…
…00100100000011010
31011021001100211021021
423101320210200122
5144300431433310
65321441033054
7606061343533
oct132170444032
934231324237
1012111202330
115155504627
12242002578a
1311b01cb216
1482c6c768a
154ad3d95da
hex2d1e2481a

12111202330 has 8 divisors (see below), whose sum is σ = 21800164212. Its totient is φ = 4844480928.

The previous prime is 12111202321. The next prime is 12111202331. The reversal of 12111202330 is 3320211121.

It can be written as a sum of positive squares in 2 ways, for example, as 11672425521 + 438776809 = 108039^2 + 20947^2 .

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

It is not an unprimeable number, because it can be changed into a prime (12111202331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 605560107 + ... + 605560126.

Almost surely, 212111202330 is an apocalyptic number.

12111202330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12111202330 is a deficient number, since it is larger than the sum of its proper divisors (9688961882).

12111202330 is a wasteful number, since it uses less digits than its factorization.

12111202330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1211120240.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 12111202330 its reverse (3320211121), we get a palindrome (15431413451).

The spelling of 12111202330 in words is "twelve billion, one hundred eleven million, two hundred two thousand, three hundred thirty".

Divisors: 1 2 5 10 1211120233 2422240466 6055601165 12111202330