33131241040 has 40 divisors (see below), whose sum is σ = 77051496960. Its totient is φ = 13248821376.

The previous prime is 33131241007. The next prime is 33131241049. The reversal of 33131241040 is 4014213133.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33131241049) 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 7 ways as a sum of consecutive naturals, for example, 242601 + ... + 353719.

It is an arithmetic number, because the mean of its divisors is an integer number (1926287424).

Almost surely, 2^33131241040 is an apocalyptic number.

It is an amenable number.

33131241040 is an abundant number, since it is smaller than the sum of its proper divisors (43920255920).

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

33131241040 is a wasteful number, since it uses less digits than its factorization.

33131241040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114859 (or 114853 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 33131241040 its reverse (4014213133), we get a palindrome (37145454173).

The spelling of 33131241040 in words is "thirty-three billion, one hundred thirty-one million, two hundred forty-one thousand, forty".