120403033812 has 36 divisors (see below), whose sum is σ = 305794559616. Its totient is φ = 39944131920.

The previous prime is 120403033811. The next prime is 120403033831. The reversal of 120403033812 is 218330304021.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×120403033812² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120403033811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7917828 + ... + 7933019.

Almost surely, 2^120403033812 is an apocalyptic number.

120403033812 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

120403033812 is an abundant number, since it is smaller than the sum of its proper divisors (185391525804).

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

120403033812 is a wasteful number, since it uses less digits than its factorization.

120403033812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15851068 (or 15851063 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

Adding to 120403033812 its reverse (218330304021), we get a palindrome (338733337833).

The spelling of 120403033812 in words is "one hundred twenty billion, four hundred three million, thirty-three thousand, eight hundred twelve".