131128310 has 32 divisors (see below), whose sum is σ = 263075040. Its totient is φ = 46766592.

The previous prime is 131128301. The next prime is 131128331. The reversal of 131128310 is 13821131.

It is a super-2 number, since 2×131128310² = 34389267366912200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17069 + ... + 23528.

It is an arithmetic number, because the mean of its divisors is an integer number (8221095).

Almost surely, 2^131128310 is an apocalyptic number.

131128310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131128310 is an abundant number, since it is smaller than the sum of its proper divisors (131946730).

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

131128310 is a wasteful number, since it uses less digits than its factorization.

131128310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40640.

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 131128310 is about 11451.1270187698. The cubic root of 131128310 is about 508.0410691785.

Adding to 131128310 its reverse (13821131), we get a palindrome (144949441).

The spelling of 131128310 in words is "one hundred thirty-one million, one hundred twenty-eight thousand, three hundred ten".