133403421432 has 32 divisors (see below), whose sum is σ = 334695433680. Its totient is φ = 44309556480.

The previous prime is 133403421419. The next prime is 133403421497. The reversal of 133403421432 is 234124304331.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 133403421432.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9883783 + ... + 9897270.

Almost surely, 2^133403421432 is an apocalyptic number.

133403421432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

133403421432 is an abundant number, since it is smaller than the sum of its proper divisors (201292012248).

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

133403421432 is a wasteful number, since it uses less digits than its factorization.

133403421432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19781343 (or 19781339 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 30.

Adding to 133403421432 its reverse (234124304331), we get a palindrome (367527725763).

The spelling of 133403421432 in words is "one hundred thirty-three billion, four hundred three million, four hundred twenty-one thousand, four hundred thirty-two".