130402020 has 48 divisors (see below), whose sum is σ = 417287808. Its totient is φ = 29806080.

The previous prime is 130402001. The next prime is 130402031. The reversal of 130402020 is 20204031.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 130401987 and 130402005.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 154821 + ... + 155660.

It is an arithmetic number, because the mean of its divisors is an integer number (8693496).

Almost surely, 2^130402020 is an apocalyptic number.

130402020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

130402020 is an abundant number, since it is smaller than the sum of its proper divisors (286885788).

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

130402020 is a wasteful number, since it uses less digits than its factorization.

130402020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310500 (or 310498 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 130402020 is about 11419.3703854460. The cubic root of 130402020 is about 507.1013572941.

Adding to 130402020 its reverse (20204031), we get a palindrome (150606051).

The spelling of 130402020 in words is "one hundred thirty million, four hundred two thousand, twenty".