131002210 has 8 divisors (see below), whose sum is σ = 235803996. Its totient is φ = 52400880.

The previous prime is 131002177. The next prime is 131002211. The reversal of 131002210 is 12200131.

It can be written as a sum of positive squares in 2 ways, for example, as 123010281 + 7991929 = 11091^2 + 2827^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (10), and also a Moran number because the ratio is a prime number: 13100221 = 131002210 / (1 + 3 + 1 + 0 + 0 + 2 + 2 + 1 + 0).

It is not an unprimeable number, because it can be changed into a prime (131002211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6550101 + ... + 6550120.

Almost surely, 2^131002210 is an apocalyptic number.

131002210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131002210 is a deficient number, since it is larger than the sum of its proper divisors (104801786).

131002210 is a wasteful number, since it uses less digits than its factorization.

131002210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13100228.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 131002210 is about 11445.6196861507. The cubic root of 131002210 is about 507.8781637881.

Adding to 131002210 its reverse (12200131), we get a palindrome (143202341).

The spelling of 131002210 in words is "one hundred thirty-one million, two thousand, two hundred ten".