123212303 has 4 divisors (see below), whose sum is σ = 123404568. Its totient is φ = 123020040.

The previous prime is 123212293. The next prime is 123212347. The reversal of 123212303 is 303212321.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 123212303 - 2¹⁰ = 123211279 is a prime.

It is a super-2 number, since 2×123212303² = 30362543221127618, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123212603) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95168 + ... + 96453.

It is an arithmetic number, because the mean of its divisors is an integer number (30851142).

Almost surely, 2^123212303 is an apocalyptic number.

123212303 is a deficient number, since it is larger than the sum of its proper divisors (192265).

123212303 is an equidigital number, since it uses as much as digits as its factorization.

123212303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192264.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 123212303 is about 11100.1037382540. The cubic root of 123212303 is about 497.6049497871.

Adding to 123212303 its reverse (303212321), we get a palindrome (426424624).

The spelling of 123212303 in words is "one hundred twenty-three million, two hundred twelve thousand, three hundred three".