123212319 has 8 divisors (see below), whose sum is σ = 165818880. Its totient is φ = 81373656.

The previous prime is 123212293. The next prime is 123212347. The reversal of 123212319 is 913212321.

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

It is not a de Polignac number, because 123212319 - 2¹² = 123208223 is a prime.

It is a super-2 number, since 2×123212319² = 30362551106715522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123212389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 191599 + ... + 192240.

It is an arithmetic number, because the mean of its divisors is an integer number (20727360).

Almost surely, 2^123212319 is an apocalyptic number.

123212319 is a deficient number, since it is larger than the sum of its proper divisors (42606561).

123212319 is a wasteful number, since it uses less digits than its factorization.

123212319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 383949.

The product of its digits is 648, while the sum is 24.

The square root of 123212319 is about 11100.1044589679. The cubic root of 123212319 is about 497.6049713263.

The spelling of 123212319 in words is "one hundred twenty-three million, two hundred twelve thousand, three hundred nineteen".