120512154312 has 192 divisors, whose sum is σ = 371786500800. Its totient is φ = 34929323520.

The previous prime is 120512154311. The next prime is 120512154313. The reversal of 120512154312 is 213451215021.

It is a happy number.

120512154312 is a `hidden beast` number, since 1 + 205 + 1 + 21 + 5 + 431 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (120512154311) and next prime (120512154313).

It is not an unprimeable number, because it can be changed into a prime (120512154311) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2433058 + ... + 2482094.

It is an arithmetic number, because the mean of its divisors is an integer number (1936388025).

Almost surely, 2^120512154312 is an apocalyptic number.

120512154312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 120512154312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (185893250400).

120512154312 is an abundant number, since it is smaller than the sum of its proper divisors (251274346488).

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

120512154312 is a wasteful number, since it uses less digits than its factorization.

120512154312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49196 (or 49189 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

Adding to 120512154312 its reverse (213451215021), we get a palindrome (333963369333).

The spelling of 120512154312 in words is "one hundred twenty billion, five hundred twelve million, one hundred fifty-four thousand, three hundred twelve".