131030303212 has 24 divisors (see below), whose sum is σ = 241384071600. Its totient is φ = 62063781696.

The previous prime is 131030303197. The next prime is 131030303237. The reversal of 131030303212 is 212303030131.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 131030303212.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2135214 + ... + 2195722.

It is an arithmetic number, because the mean of its divisors is an integer number (10057669650).

Almost surely, 2^131030303212 is an apocalyptic number.

It is an amenable number.

131030303212 is a deficient number, since it is larger than the sum of its proper divisors (110353768388).

131030303212 is a wasteful number, since it uses less digits than its factorization.

131030303212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89025 (or 89023 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 131030303212 its reverse (212303030131), we get a palindrome (343333333343).

The spelling of 131030303212 in words is "one hundred thirty-one billion, thirty million, three hundred three thousand, two hundred twelve".