131001212 has 6 divisors (see below), whose sum is σ = 229252128. Its totient is φ = 65500604.

The previous prime is 131001209. The next prime is 131001217. The reversal of 131001212 is 212100131.

It is a super-2 number, since 2×131001212² = 34322635090937888, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 131001193 and 131001202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131001217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16375148 + ... + 16375155.

It is an arithmetic number, because the mean of its divisors is an integer number (38208688).

Almost surely, 2^131001212 is an apocalyptic number.

It is an amenable number.

131001212 is a deficient number, since it is larger than the sum of its proper divisors (98250916).

131001212 is a wasteful number, since it uses less digits than its factorization.

131001212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32750307 (or 32750305 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 131001212 is about 11445.5760886030. The cubic root of 131001212 is about 507.8768740804.

Adding to 131001212 its reverse (212100131), we get a palindrome (343101343).

The spelling of 131001212 in words is "one hundred thirty-one million, one thousand, two hundred twelve".