33135342420 has 48 divisors (see below), whose sum is σ = 94529514240. Its totient is φ = 8669371776.

The previous prime is 33135342389. The next prime is 33135342431. The reversal of 33135342420 is 2424353133.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5206780 + ... + 5213139.

It is an arithmetic number, because the mean of its divisors is an integer number (1969364880).

Almost surely, 2^33135342420 is an apocalyptic number.

33135342420 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

33135342420 is an abundant number, since it is smaller than the sum of its proper divisors (61394171820).

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

33135342420 is a wasteful number, since it uses less digits than its factorization.

33135342420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10419984 (or 10419982 counting only the distinct ones).

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

Adding to 33135342420 its reverse (2424353133), we get a palindrome (35559695553).

The spelling of 33135342420 in words is "thirty-three billion, one hundred thirty-five million, three hundred forty-two thousand, four hundred twenty".