12001131012 has 24 divisors (see below), whose sum is σ = 30156688576. Its totient is φ = 3692655648.

The previous prime is 12001130963. The next prime is 12001131019. The reversal of 12001131012 is 21013110021.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (12001131019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38465008 + ... + 38465319.

Almost surely, 2^12001131012 is an apocalyptic number.

12001131012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12001131012 is an abundant number, since it is smaller than the sum of its proper divisors (18155557564).

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

12001131012 is a wasteful number, since it uses less digits than its factorization.

12001131012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76930347 (or 76930345 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 12.

Adding to 12001131012 its reverse (21013110021), we get a palindrome (33014241033).

The spelling of 12001131012 in words is "twelve billion, one million, one hundred thirty-one thousand, twelve".