123453212 has 6 divisors (see below), whose sum is σ = 216043128. Its totient is φ = 61726604.

The previous prime is 123453199. The next prime is 123453217. The reversal of 123453212 is 212354321.

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 polite number, since it can be written as a sum of consecutive naturals, namely, 15431648 + ... + 15431655.

It is an arithmetic number, because the mean of its divisors is an integer number (36007188).

Almost surely, 2^123453212 is an apocalyptic number.

It is an amenable number.

123453212 is a deficient number, since it is larger than the sum of its proper divisors (92589916).

123453212 is a wasteful number, since it uses less digits than its factorization.

123453212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30863307 (or 30863305 counting only the distinct ones).

The product of its digits is 1440, while the sum is 23.

The square root of 123453212 is about 11110.9500943889. The cubic root of 123453212 is about 497.9290501763.

The spelling of 123453212 in words is "one hundred twenty-three million, four hundred fifty-three thousand, two hundred twelve".