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123213330301 = 5312891803553
BaseRepresentation
bin111001011000000010…
…1100011011101111101
3102210000221121200222211
41302300011203131331
54004320103032201
6132334201140421
711621225012215
oct1626005433575
9383027550884
10123213330301
11482887927a6
121ba67a8a711
13b807b42549
145d6c001245
153312138651
hex1cb016377d

123213330301 has 8 divisors (see below), whose sum is σ = 125635571640. Its totient is φ = 120794698752.

The previous prime is 123213330287. The next prime is 123213330313. The reversal of 123213330301 is 103033312321.

It can be written as a sum of positive squares in 4 ways, for example, as 25526452900 + 97686877401 = 159770^2 + 312549^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 123213330301 - 27 = 123213330173 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 (123213730301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 833460 + ... + 970093.

It is an arithmetic number, because the mean of its divisors is an integer number (15704446455).

Almost surely, 2123213330301 is an apocalyptic number.

It is an amenable number.

123213330301 is a deficient number, since it is larger than the sum of its proper divisors (2422241339).

123213330301 is a wasteful number, since it uses less digits than its factorization.

123213330301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1804895.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 123213330301 its reverse (103033312321), we get a palindrome (226246642622).

The spelling of 123213330301 in words is "one hundred twenty-three billion, two hundred thirteen million, three hundred thirty thousand, three hundred one".

Divisors: 1 53 1289 68317 1803553 95588309 2324779817 123213330301