1232123450 has 24 divisors (see below), whose sum is σ = 2426560092. Its totient is φ = 463857920.

The previous prime is 1232123447. The next prime is 1232123479. The reversal of 1232123450 is 543212321.

It can be written as a sum of positive squares in 6 ways, for example, as 767677849 + 464445601 = 27707^2 + 21551^2 .

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

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 723929 + ... + 725628.

Almost surely, 2^1232123450 is an apocalyptic number.

1232123450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1232123450 is a deficient number, since it is larger than the sum of its proper divisors (1194436642).

1232123450 is a wasteful number, since it uses less digits than its factorization.

1232123450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1449586 (or 1449581 counting only the distinct ones).

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

The square root of 1232123450 is about 35101.6160596631. The cubic root of 1232123450 is about 1072.0574875655.

Adding to 1232123450 its reverse (543212321), we get a palindrome (1775335771).

The spelling of 1232123450 in words is "one billion, two hundred thirty-two million, one hundred twenty-three thousand, four hundred fifty".