1020104120 has 64 divisors (see below), whose sum is σ = 2628702720. Its totient is φ = 349006464.

The previous prime is 1020104101. The next prime is 1020104123. The reversal of 1020104120 is 214010201.

It is a super-2 number, since 2×1020104120² = 2081224831281948800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020104123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 137219 + ... + 144461.

It is an arithmetic number, because the mean of its divisors is an integer number (41073480).

Almost surely, 2^1020104120 is an apocalyptic number.

1020104120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1020104120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1314351360).

1020104120 is an abundant number, since it is smaller than the sum of its proper divisors (1608598600).

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

1020104120 is a wasteful number, since it uses less digits than its factorization.

1020104120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7764 (or 7760 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 1020104120 is about 31939.0688655759. The cubic root of 1020104120 is about 1006.6569598838.

Adding to 1020104120 its reverse (214010201), we get a palindrome (1234114321).

The spelling of 1020104120 in words is "one billion, twenty million, one hundred four thousand, one hundred twenty".