1232521234 has 16 divisors (see below), whose sum is σ = 2142654336. Its totient is φ = 520783200.

The previous prime is 1232521211. The next prime is 1232521237. The reversal of 1232521234 is 4321252321.

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

It is a junction number, because it is equal to n+sod(n) for n = 1232521199 and 1232521208.

It is not an unprimeable number, because it can be changed into a prime (1232521237) 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, 618987 + ... + 620974.

It is an arithmetic number, because the mean of its divisors is an integer number (133915896).

Almost surely, 2^1232521234 is an apocalyptic number.

1232521234 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1232521234 is a deficient number, since it is larger than the sum of its proper divisors (910133102).

1232521234 is a wasteful number, since it uses less digits than its factorization.

1232521234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1240041.

The product of its digits is 2880, while the sum is 25.

The square root of 1232521234 is about 35107.2817802803. The cubic root of 1232521234 is about 1072.1728443592.

Adding to 1232521234 its reverse (4321252321), we get a palindrome (5553773555).

The spelling of 1232521234 in words is "one billion, two hundred thirty-two million, five hundred twenty-one thousand, two hundred thirty-four".