130378331 has 4 divisors (see below), whose sum is σ = 130480152. Its totient is φ = 130276512.

The previous prime is 130378307. The next prime is 130378337. The reversal of 130378331 is 133873031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 133873031 = 19 ⋅7045949.

It is a cyclic number.

It is not a de Polignac number, because 130378331 - 2¹⁴ = 130361947 is a prime.

It is a super-2 number, since 2×130378331² = 33997018388691122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 130378294 and 130378303.

It is not an unprimeable number, because it can be changed into a prime (130378337) 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, 48965 + ... + 51558.

It is an arithmetic number, because the mean of its divisors is an integer number (32620038).

Almost surely, 2^130378331 is an apocalyptic number.

130378331 is a deficient number, since it is larger than the sum of its proper divisors (101821).

130378331 is a wasteful number, since it uses less digits than its factorization.

130378331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101820.

The product of its (nonzero) digits is 4536, while the sum is 29.

The square root of 130378331 is about 11418.3331095217. Note that the first 3 decimals coincide. The cubic root of 130378331 is about 507.0706485378.

The spelling of 130378331 in words is "one hundred thirty million, three hundred seventy-eight thousand, three hundred thirty-one".