12120131012 has 18 divisors (see below), whose sum is σ = 23313724014. Its totient is φ = 5509150240.

The previous prime is 12120131003. The next prime is 12120131047. The reversal of 12120131012 is 21013102121.

It can be written as a sum of positive squares in only one way, i.e., 8915891776 + 3204239236 = 94424^2 + 56606^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12520313 + ... + 12521280.

Almost surely, 2^12120131012 is an apocalyptic number.

It is an amenable number.

12120131012 is a deficient number, since it is larger than the sum of its proper divisors (11193593002).

12120131012 is a wasteful number, since it uses less digits than its factorization.

12120131012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25041619 (or 25041606 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 12120131012 its reverse (21013102121), we get a palindrome (33133233133).

The spelling of 12120131012 in words is "twelve billion, one hundred twenty million, one hundred thirty-one thousand, twelve".