130331442 has 8 divisors (see below), whose sum is σ = 260662896. Its totient is φ = 43443812.

The previous prime is 130331437. The next prime is 130331447. The reversal of 130331442 is 244133031.

It is an interprime number because it is at equal distance from previous prime (130331437) and next prime (130331447).

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

130331442 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (130331447) 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, 10860948 + ... + 10860959.

It is an arithmetic number, because the mean of its divisors is an integer number (32582862).

Almost surely, 2^130331442 is an apocalyptic number.

130331442 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

130331442 is a wasteful number, since it uses less digits than its factorization.

130331442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21721912.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 130331442 is about 11416.2796917385. The cubic root of 130331442 is about 507.0098539608.

Adding to 130331442 its reverse (244133031), we get a palindrome (374464473).

The spelling of 130331442 in words is "one hundred thirty million, three hundred thirty-one thousand, four hundred forty-two".