1233212345 has 8 divisors (see below), whose sum is σ = 1481172360. Its totient is φ = 985691520.

The previous prime is 1233212311. The next prime is 1233212363. The reversal of 1233212345 is 5432123321.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 117852736 + 1115359609 = 10856^2 + 33397^2 .

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

It is not a de Polignac number, because 1233212345 - 2¹⁶ = 1233146809 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103586 + ... + 114875.

It is an arithmetic number, because the mean of its divisors is an integer number (185146545).

Almost surely, 2^1233212345 is an apocalyptic number.

It is an amenable number.

1233212345 is a deficient number, since it is larger than the sum of its proper divisors (247960015).

1233212345 is a wasteful number, since it uses less digits than its factorization.

1233212345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219595.

The product of its digits is 4320, while the sum is 26.

The square root of 1233212345 is about 35117.1232449357. The cubic root of 1233212345 is about 1072.3732065574.

Adding to 1233212345 its reverse (5432123321), we get a palindrome (6665335666).

The spelling of 1233212345 in words is "one billion, two hundred thirty-three million, two hundred twelve thousand, three hundred forty-five".