120213312012 has 72 divisors (see below), whose sum is σ = 307042248240. Its totient is φ = 39653539200.

The previous prime is 120213311993. The next prime is 120213312029. The reversal of 120213312012 is 210213312021.

It is a Harshad number since it is a multiple of its sum of digits (18).

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 in 23 ways as a sum of consecutive naturals, for example, 7915258 + ... + 7930430.

It is an arithmetic number, because the mean of its divisors is an integer number (4264475670).

Almost surely, 2^120213312012 is an apocalyptic number.

120213312012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

120213312012 is an abundant number, since it is smaller than the sum of its proper divisors (186828936228).

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

120213312012 is a wasteful number, since it uses less digits than its factorization.

120213312012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17463 (or 17458 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 120213312012 its reverse (210213312021), we get a palindrome (330426624033).

Subtracting 120213312012 from its reverse (210213312021), we obtain a palindrome (90000000009).

The spelling of 120213312012 in words is "one hundred twenty billion, two hundred thirteen million, three hundred twelve thousand, twelve".