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123214224403213 = 252949487110937
BaseRepresentation
bin11100000001000000001100…
…000100111010101100001101
3121011021011110011001112210121
4130001000030010322230031
5112122220212421400323
61114015455552504541
734644635225626456
oct3401001404725415
9534234404045717
10123214224403213
113629494a53a819
121199b8aa54b151
13539a089207578
14225d85925612d
15e3a140ecba5d
hex70100c13ab0d

123214224403213 has 4 divisors (see below), whose sum is σ = 123214711767100. Its totient is φ = 123213737039328.

The previous prime is 123214224403177. The next prime is 123214224403289. The reversal of 123214224403213 is 312304422412321.

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 93138191560969 + 30076032842244 = 9650813^2 + 5484162^2 .

It is a cyclic number.

It is not a de Polignac number, because 123214224403213 - 221 = 123214222306061 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 (123214224443213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 243302520 + ... + 243808417.

It is an arithmetic number, because the mean of its divisors is an integer number (30803677941775).

Almost surely, 2123214224403213 is an apocalyptic number.

It is an amenable number.

123214224403213 is a deficient number, since it is larger than the sum of its proper divisors (487363887).

123214224403213 is an equidigital number, since it uses as much as digits as its factorization.

123214224403213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487363886.

The product of its (nonzero) digits is 55296, while the sum is 34.

Adding to 123214224403213 its reverse (312304422412321), we get a palindrome (435518646815534).

The spelling of 123214224403213 in words is "one hundred twenty-three trillion, two hundred fourteen billion, two hundred twenty-four million, four hundred three thousand, two hundred thirteen".

Divisors: 1 252949 487110937 123214224403213