131033131212 has 24 divisors (see below), whose sum is σ = 307795950000. Its totient is φ = 43384570816.

The previous prime is 131033131171. The next prime is 131033131217. The reversal of 131033131212 is 212131330131.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (131033131217) 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, 36640587 + ... + 36644162.

It is an arithmetic number, because the mean of its divisors is an integer number (12824831250).

Almost surely, 2^131033131212 is an apocalyptic number.

131033131212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

131033131212 is an abundant number, since it is smaller than the sum of its proper divisors (176762818788).

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

131033131212 is a wasteful number, since it uses less digits than its factorization.

131033131212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73284905 (or 73284903 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 131033131212 its reverse (212131330131), we get a palindrome (343164461343).

The spelling of 131033131212 in words is "one hundred thirty-one billion, thirty-three million, one hundred thirty-one thousand, two hundred twelve".