133530232242 has 32 divisors (see below), whose sum is σ = 291558426624. Its totient is φ = 40433187600.

The previous prime is 133530232219. The next prime is 133530232249. The reversal of 133530232242 is 242232035331.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (133530232249) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 674734 + ... + 849897.

It is an arithmetic number, because the mean of its divisors is an integer number (9111200832).

Almost surely, 2^133530232242 is an apocalyptic number.

133530232242 is an abundant number, since it is smaller than the sum of its proper divisors (158028194382).

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

133530232242 is a wasteful number, since it uses less digits than its factorization.

133530232242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1525974.

The product of its (nonzero) digits is 25920, while the sum is 30.

Adding to 133530232242 its reverse (242232035331), we get a palindrome (375762267573).

The spelling of 133530232242 in words is "one hundred thirty-three billion, five hundred thirty million, two hundred thirty-two thousand, two hundred forty-two".