120012040312 has 8 divisors (see below), whose sum is σ = 225022575600. Its totient is φ = 60006020152.

The previous prime is 120012040289. The next prime is 120012040321. The reversal of 120012040312 is 213040210021.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×120012040312² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 7500752512 + ... + 7500752527.

It is an arithmetic number, because the mean of its divisors is an integer number (28127821950).

Almost surely, 2^120012040312 is an apocalyptic number.

It is an amenable number.

120012040312 is a deficient number, since it is larger than the sum of its proper divisors (105010535288).

120012040312 is a wasteful number, since it uses less digits than its factorization.

120012040312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15001505045 (or 15001505041 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 120012040312 its reverse (213040210021), we get a palindrome (333052250333).

The spelling of 120012040312 in words is "one hundred twenty billion, twelve million, forty thousand, three hundred twelve".