33131330142 has 64 divisors (see below), whose sum is σ = 70264669440. Its totient is φ = 10385625600.

The previous prime is 33131330137. The next prime is 33131330173. The reversal of 33131330142 is 24103313133.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10413792 + ... + 10416972.

It is an arithmetic number, because the mean of its divisors is an integer number (1097885460).

Almost surely, 2^33131330142 is an apocalyptic number.

33131330142 is an abundant number, since it is smaller than the sum of its proper divisors (37133339298).

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

33131330142 is a wasteful number, since it uses less digits than its factorization.

33131330142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3849.

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 33131330142 its reverse (24103313133), we get a palindrome (57234643275).

The spelling of 33131330142 in words is "thirty-three billion, one hundred thirty-one million, three hundred thirty thousand, one hundred forty-two".