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12112120301 = 78713153877
BaseRepresentation
bin10110100011111000…
…00100100111101101
31011021010002110111012
423101330010213231
5144301200322201
65321512435005
7606102216041
oct132174044755
934233073435
1012112120301
115155a81286
1224203a8a65
1311b045ccb8
1482c886021
154ad51b5bb
hex2d1f049ed

12112120301 has 4 divisors (see below), whose sum is σ = 12112352892. Its totient is φ = 12111887712.

The previous prime is 12112120261. The next prime is 12112120327. The reversal of 12112120301 is 10302121121.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6535914025 + 5576206276 = 80845^2 + 74674^2 .

It is a cyclic number.

It is not a de Polignac number, because 12112120301 - 210 = 12112119277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12112120201) 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, 1775 + ... + 155651.

It is an arithmetic number, because the mean of its divisors is an integer number (3028088223).

Almost surely, 212112120301 is an apocalyptic number.

It is an amenable number.

12112120301 is a deficient number, since it is larger than the sum of its proper divisors (232591).

12112120301 is an equidigital number, since it uses as much as digits as its factorization.

12112120301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232590.

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

Adding to 12112120301 its reverse (10302121121), we get a palindrome (22414241422).

The spelling of 12112120301 in words is "twelve billion, one hundred twelve million, one hundred twenty thousand, three hundred one".

Divisors: 1 78713 153877 12112120301