33131123404 has 12 divisors (see below), whose sum is σ = 61390022904. Its totient is φ = 15591116864.

The previous prime is 33131123401. The next prime is 33131123437. The reversal of 33131123404 is 40432113133.

It is a super-2 number, since 2×33131123404² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (33131123401) 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 3 ways as a sum of consecutive naturals, for example, 243611134 + ... + 243611269.

It is an arithmetic number, because the mean of its divisors is an integer number (5115835242).

Almost surely, 2^33131123404 is an apocalyptic number.

33131123404 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

33131123404 is a deficient number, since it is larger than the sum of its proper divisors (28258899500).

33131123404 is a wasteful number, since it uses less digits than its factorization.

33131123404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487222424 (or 487222422 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 33131123404 its reverse (40432113133), we get a palindrome (73563236537).

The spelling of 33131123404 in words is "thirty-three billion, one hundred thirty-one million, one hundred twenty-three thousand, four hundred four".