131211008 has 18 divisors (see below), whose sum is σ = 261909984. Its totient is φ = 65605376.

The previous prime is 131211007. The next prime is 131211013. The reversal of 131211008 is 800112131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131211007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256016 + ... + 256527.

Almost surely, 2^131211008 is an apocalyptic number.

It is an amenable number.

131211008 is a deficient number, since it is larger than the sum of its proper divisors (130698976).

131211008 is an frugal number, since it uses more digits than its factorization.

131211008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 512559 (or 512545 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 17.

The square root of 131211008 is about 11454.7373605858. The cubic root of 131211008 is about 508.1478479287.

Adding to 131211008 its reverse (800112131), we get a palindrome (931323139).

The spelling of 131211008 in words is "one hundred thirty-one million, two hundred eleven thousand, eight".