131211011012 has 24 divisors (see below), whose sum is σ = 231326938080. Its totient is φ = 65117828160.

The previous prime is 131211011011. The next prime is 131211011089. The reversal of 131211011012 is 210110112131.

It is a super-4 number, since 4×131211011012⁴ (a number of 46 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (131211011011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2479712 + ... + 2532072.

It is an arithmetic number, because the mean of its divisors is an integer number (9638622420).

Almost surely, 2^131211011012 is an apocalyptic number.

It is an amenable number.

131211011012 is a deficient number, since it is larger than the sum of its proper divisors (100115927068).

131211011012 is a wasteful number, since it uses less digits than its factorization.

131211011012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57011 (or 57009 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 14.

Adding to 131211011012 its reverse (210110112131), we get a palindrome (341321123143).

The spelling of 131211011012 in words is "one hundred thirty-one billion, two hundred eleven million, eleven thousand, twelve".