123453213 has 32 divisors (see below), whose sum is σ = 186090240. Its totient is φ = 72230400.

The previous prime is 123453199. The next prime is 123453217. The reversal of 123453213 is 312354321.

It is not a de Polignac number, because 123453213 - 2⁵ = 123453181 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123453217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 205113 + ... + 205713.

It is an arithmetic number, because the mean of its divisors is an integer number (5815320).

Almost surely, 2^123453213 is an apocalyptic number.

123453213 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

123453213 is a deficient number, since it is larger than the sum of its proper divisors (62637027).

123453213 is a wasteful number, since it uses less digits than its factorization.

123453213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 869.

The product of its digits is 2160, while the sum is 24.

The square root of 123453213 is about 11110.9501393895. The cubic root of 123453213 is about 497.9290515207.

The spelling of 123453213 in words is "one hundred twenty-three million, four hundred fifty-three thousand, two hundred thirteen".