131030212 has 12 divisors (see below), whose sum is σ = 229419820. Its totient is φ = 65481696.

The previous prime is 131030201. The next prime is 131030231. The reversal of 131030212 is 212030131.

It can be written as a sum of positive squares in 2 ways, for example, as 29746116 + 101284096 = 5454^2 + 10064^2 .

It is a junction number, because it is equal to n+sod(n) for n = 131030192 and 131030201.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1858 + ... + 16294.

Almost surely, 2^131030212 is an apocalyptic number.

It is an amenable number.

131030212 is a deficient number, since it is larger than the sum of its proper divisors (98389608).

131030212 is a wasteful number, since it uses less digits than its factorization.

131030212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16710 (or 16708 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 131030212 is about 11446.8428835203. The cubic root of 131030212 is about 507.9143478880.

Adding to 131030212 its reverse (212030131), we get a palindrome (343060343).

It can be divided in two parts, 13 and 1030212, that added together give a square (1030225 = 1015²).

The spelling of 131030212 in words is "one hundred thirty-one million, thirty thousand, two hundred twelve".