130331023 has 4 divisors (see below), whose sum is σ = 130553640. Its totient is φ = 130108408.

The previous prime is 130331021. The next prime is 130331039. The reversal of 130331023 is 320133031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 320133031 = 421 ⋅760411.

It is a cyclic number.

It is not a de Polignac number, because 130331023 - 2¹ = 130331021 is a prime.

It is a super-4 number, since 4×130331023⁴ (a number of 34 digits) contains 4444 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 130330988 and 130331006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130331021) 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, 110428 + ... + 111601.

It is an arithmetic number, because the mean of its divisors is an integer number (32638410).

Almost surely, 2^130331023 is an apocalyptic number.

130331023 is a deficient number, since it is larger than the sum of its proper divisors (222617).

130331023 is an equidigital number, since it uses as much as digits as its factorization.

130331023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222616.

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

The square root of 130331023 is about 11416.2613407367. The cubic root of 130331023 is about 507.0093106349.

Adding to 130331023 its reverse (320133031), we get a palindrome (450464054).

The spelling of 130331023 in words is "one hundred thirty million, three hundred thirty-one thousand, twenty-three".