123434432032 has 48 divisors (see below), whose sum is σ = 253286272512. Its totient is φ = 59146421760.

The previous prime is 123434432021. The next prime is 123434432089. The reversal of 123434432032 is 230234434321.

It is a happy number.

It is a super-2 number, since 2×123434432032² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a junction number, because it is equal to n+sod(n) for n = 123434431985 and 123434432003.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 501853 + ... + 706204.

It is an arithmetic number, because the mean of its divisors is an integer number (5276797344).

Almost surely, 2^123434432032 is an apocalyptic number.

It is an amenable number.

123434432032 is an abundant number, since it is smaller than the sum of its proper divisors (129851840480).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123434432032 is a wasteful number, since it uses less digits than its factorization.

123434432032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1208201 (or 1208193 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 31.

Adding to 123434432032 its reverse (230234434321), we get a palindrome (353668866353).

The spelling of 123434432032 in words is "one hundred twenty-three billion, four hundred thirty-four million, four hundred thirty-two thousand, thirty-two".