131023330 has 8 divisors (see below), whose sum is σ = 235842012. Its totient is φ = 52409328.

The previous prime is 131023309. The next prime is 131023339. The reversal of 131023330 is 33320131.

It can be written as a sum of positive squares in 2 ways, for example, as 112126921 + 18896409 = 10589^2 + 4347^2 .

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

It is a super-2 number, since 2×131023330² = 34334226008577800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (131023339) 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, 6551157 + ... + 6551176.

Almost surely, 2^131023330 is an apocalyptic number.

131023330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131023330 is a deficient number, since it is larger than the sum of its proper divisors (104818682).

131023330 is a wasteful number, since it uses less digits than its factorization.

131023330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13102340.

The product of its (nonzero) digits is 162, while the sum is 16.

The square root of 131023330 is about 11446.5422726691. The cubic root of 131023330 is about 507.9054554662.

Adding to 131023330 its reverse (33320131), we get a palindrome (164343461).

The spelling of 131023330 in words is "one hundred thirty-one million, twenty-three thousand, three hundred thirty".