12320213355 has 24 divisors (see below), whose sum is σ = 21358454832. Its totient is φ = 6569728704.

The previous prime is 12320213341. The next prime is 12320213357. The reversal of 12320213355 is 55331202321.

It is a happy number.

12320213355 is a `hidden beast` number, since 1 + 2 + 320 + 2 + 1 + 335 + 5 = 666.

It is not a de Polignac number, because 12320213355 - 2¹⁷ = 12320082283 is a prime.

It is a super-2 number, since 2×12320213355² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12320213357) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 321477 + ... + 357753.

It is an arithmetic number, because the mean of its divisors is an integer number (889935618).

Almost surely, 2^12320213355 is an apocalyptic number.

12320213355 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12320213355 is a deficient number, since it is larger than the sum of its proper divisors (9038241477).

12320213355 is a wasteful number, since it uses less digits than its factorization.

12320213355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43835 (or 43832 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

Adding to 12320213355 its reverse (55331202321), we get a palindrome (67651415676).

The spelling of 12320213355 in words is "twelve billion, three hundred twenty million, two hundred thirteen thousand, three hundred fifty-five".