120406312 has 32 divisors (see below), whose sum is σ = 244046880. Its totient is φ = 55362240.

The previous prime is 120406267. The next prime is 120406327. The reversal of 120406312 is 213604021.

It is a self number, because there is not a number n which added to its sum of digits gives 120406312.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27387 + ... + 31477.

It is an arithmetic number, because the mean of its divisors is an integer number (7626465).

Almost surely, 2^120406312 is an apocalyptic number.

It is an amenable number.

120406312 is an abundant number, since it is smaller than the sum of its proper divisors (123640568).

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

120406312 is a wasteful number, since it uses less digits than its factorization.

120406312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4393 (or 4389 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 120406312 is about 10972.9809987988. The cubic root of 120406312 is about 493.7984830456.

The spelling of 120406312 in words is "one hundred twenty million, four hundred six thousand, three hundred twelve".