131786820012 has 24 divisors (see below), whose sum is σ = 307579204800. Its totient is φ = 43917993616.

The previous prime is 131786819963. The next prime is 131786820019. The reversal of 131786820012 is 210028687131.

It is not an unprimeable number, because it can be changed into a prime (131786820019) 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, 1318062 + ... + 1414517.

It is an arithmetic number, because the mean of its divisors is an integer number (12815800200).

Almost surely, 2^131786820012 is an apocalyptic number.

131786820012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

131786820012 is an abundant number, since it is smaller than the sum of its proper divisors (175792384788).

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

131786820012 is a wasteful number, since it uses less digits than its factorization.

131786820012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2736605 (or 2736603 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 39.

The spelling of 131786820012 in words is "one hundred thirty-one billion, seven hundred eighty-six million, eight hundred twenty thousand, twelve".