1020442130 has 16 divisors (see below), whose sum is σ = 1837816344. Its totient is φ = 407950080.

The previous prime is 1020442069. The next prime is 1020442133. The reversal of 1020442130 is 312440201.

1020442130 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 462207001 + 558235129 = 21499^2 + 23627^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1020442099 and 1020442108.

It is not an unprimeable number, because it can be changed into a prime (1020442133) 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, 8807 + ... + 46026.

Almost surely, 2^1020442130 is an apocalyptic number.

1020442130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1020442130 is a deficient number, since it is larger than the sum of its proper divisors (817374214).

1020442130 is a wasteful number, since it uses less digits than its factorization.

1020442130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56701.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 1020442130 is about 31944.3599090669. The cubic root of 1020442130 is about 1006.7681323735.

Adding to 1020442130 its reverse (312440201), we get a palindrome (1332882331).

The spelling of 1020442130 in words is "one billion, twenty million, four hundred forty-two thousand, one hundred thirty".