131321010 has 32 divisors (see below), whose sum is σ = 315487872. Its totient is φ = 34983680.

The previous prime is 131320999. The next prime is 131321017. The reversal of 131321010 is 10123131.

It is not an unprimeable number, because it can be changed into a prime (131321017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43882 + ... + 46778.

It is an arithmetic number, because the mean of its divisors is an integer number (9858996).

Almost surely, 2^131321010 is an apocalyptic number.

131321010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131321010 is an abundant number, since it is smaller than the sum of its proper divisors (184166862).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131321010 is a wasteful number, since it uses less digits than its factorization.

131321010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4418.

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 131321010 is about 11459.5379488006. The cubic root of 131321010 is about 508.2898117955.

Adding to 131321010 its reverse (10123131), we get a palindrome (141444141).

The spelling of 131321010 in words is "one hundred thirty-one million, three hundred twenty-one thousand, ten".