130331431 has 8 divisors (see below), whose sum is σ = 138607280. Its totient is φ = 122197248.

The previous prime is 130331429. The next prime is 130331437. The reversal of 130331431 is 134133031.

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

It is a cyclic number.

It is not a de Polignac number, because 130331431 - 2¹ = 130331429 is a prime.

It is a super-2 number, since 2×130331431² = 33972563813015522, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a junction number, because it is equal to n+sod(n) for n = 130331399 and 130331408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130331437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33516 + ... + 37201.

It is an arithmetic number, because the mean of its divisors is an integer number (17325910).

Almost surely, 2^130331431 is an apocalyptic number.

130331431 is a deficient number, since it is larger than the sum of its proper divisors (8275849).

130331431 is an equidigital number, since it uses as much as digits as its factorization.

130331431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70833.

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 130331431 is about 11416.2792099703. The cubic root of 130331431 is about 507.0098396969.

Adding to 130331431 its reverse (134133031), we get a palindrome (264464462).

The spelling of 130331431 in words is "one hundred thirty million, three hundred thirty-one thousand, four hundred thirty-one".