131333330 has 32 divisors (see below), whose sum is σ = 252817200. Its totient is φ = 48947200.

The previous prime is 131333317. The next prime is 131333353. The reversal of 131333330 is 33333131.

It can be written as a sum of positive squares in 8 ways, for example, as 76440049 + 54893281 = 8743^2 + 7409^2 .

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, 13346 + ... + 20994.

Almost surely, 2^131333330 is an apocalyptic number.

131333330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131333330 is a deficient number, since it is larger than the sum of its proper divisors (121483870).

131333330 is a wasteful number, since it uses less digits than its factorization.

131333330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7774.

The product of its (nonzero) digits is 729, while the sum is 20.

The square root of 131333330 is about 11460.0754796816. The cubic root of 131333330 is about 508.3057065221.

Adding to 131333330 its reverse (33333131), we get a palindrome (164666461).

It can be divided in two parts, 1313 and 33330, that added together give a palindrome (34643).

The spelling of 131333330 in words is "one hundred thirty-one million, three hundred thirty-three thousand, three hundred thirty".