33131214120 has 32 divisors (see below), whose sum is σ = 99393642720. Its totient is φ = 8834990400.

The previous prime is 33131214079. The next prime is 33131214121. The reversal of 33131214120 is 2141213133.

It is not an unprimeable number, because it can be changed into a prime (33131214121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 138046606 + ... + 138046845.

It is an arithmetic number, because the mean of its divisors is an integer number (3106051335).

Almost surely, 2^33131214120 is an apocalyptic number.

33131214120 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

33131214120 is an abundant number, since it is smaller than the sum of its proper divisors (66262428600).

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

33131214120 is a wasteful number, since it uses less digits than its factorization.

33131214120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276093465 (or 276093461 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 33131214120 its reverse (2141213133), we get a palindrome (35272427253).

The spelling of 33131214120 in words is "thirty-three billion, one hundred thirty-one million, two hundred fourteen thousand, one hundred twenty".