130120434 has 12 divisors (see below), whose sum is σ = 281927646. Its totient is φ = 43373472.

The previous prime is 130120433. The next prime is 130120439. The reversal of 130120434 is 434021031.

It can be written as a sum of positive squares in only one way, i.e., 113742225 + 16378209 = 10665^2 + 4047^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 7228913 = 130120434 / (1 + 3 + 0 + 1 + 2 + 0 + 4 + 3 + 4).

It is not an unprimeable number, because it can be changed into a prime (130120433) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3614439 + ... + 3614474.

Almost surely, 2^130120434 is an apocalyptic number.

130120434 is an abundant number, since it is smaller than the sum of its proper divisors (151807212).

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

130120434 is a wasteful number, since it uses less digits than its factorization.

130120434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7228921 (or 7228918 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 130120434 is about 11407.0344086445. The cubic root of 130120434 is about 506.7360880370.

Adding to 130120434 its reverse (434021031), we get a palindrome (564141465).

The spelling of 130120434 in words is "one hundred thirty million, one hundred twenty thousand, four hundred thirty-four".