120400142312 has 16 divisors (see below), whose sum is σ = 227102067360. Its totient is φ = 59839591024.

The previous prime is 120400142273. The next prime is 120400142327. The reversal of 120400142312 is 213241004021.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 45058598 + ... + 45061269.

It is an arithmetic number, because the mean of its divisors is an integer number (14193879210).

Almost surely, 2^120400142312 is an apocalyptic number.

It is an amenable number.

120400142312 is a deficient number, since it is larger than the sum of its proper divisors (106701925048).

120400142312 is a wasteful number, since it uses less digits than its factorization.

120400142312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90120040 (or 90120036 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 120400142312 its reverse (213241004021), we get a palindrome (333641146333).

The spelling of 120400142312 in words is "one hundred twenty billion, four hundred million, one hundred forty-two thousand, three hundred twelve".