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12323205101 = 60120504501
BaseRepresentation
bin10110111101000010…
…10010111111101101
31011210211021200101202
423132201102333231
5200214220030401
65354453015245
7614244341444
oct133641227755
934724250352
1012323205101
115254145429
12247b024525
1312150c884c
1484c911d5b
154c1d1506b
hex2de852fed

12323205101 has 4 divisors (see below), whose sum is σ = 12343710204. Its totient is φ = 12302700000.

The previous prime is 12323205077. The next prime is 12323205109. The reversal of 12323205101 is 10150232321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10150232321 = 86311761567.

It can be written as a sum of positive squares in 2 ways, for example, as 8532955876 + 3790249225 = 92374^2 + 61565^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12323205101 is a prime.

It is a super-2 number, since 2×123232051012 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12323205109) 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, 10251650 + ... + 10252851.

It is an arithmetic number, because the mean of its divisors is an integer number (3085927551).

Almost surely, 212323205101 is an apocalyptic number.

It is an amenable number.

12323205101 is a deficient number, since it is larger than the sum of its proper divisors (20505103).

12323205101 is an equidigital number, since it uses as much as digits as its factorization.

12323205101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20505102.

The product of its (nonzero) digits is 360, while the sum is 20.

Adding to 12323205101 its reverse (10150232321), we get a palindrome (22473437422).

The spelling of 12323205101 in words is "twelve billion, three hundred twenty-three million, two hundred five thousand, one hundred one".

Divisors: 1 601 20504501 12323205101