1020126120 has 64 divisors (see below), whose sum is σ = 3295797120. Its totient is φ = 251107584.

The previous prime is 1020126101. The next prime is 1020126137. The reversal of 1020126120 is 216210201.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1020126120.

It is an unprimeable number.

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, 325404 + ... + 328523.

It is an arithmetic number, because the mean of its divisors is an integer number (51496830).

Almost surely, 2^1020126120 is an apocalyptic number.

1020126120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1020126120 is an abundant number, since it is smaller than the sum of its proper divisors (2275671000).

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

1020126120 is a wasteful number, since it uses less digits than its factorization.

1020126120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 653954 (or 653950 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 1020126120 is about 31939.4132695014. The cubic root of 1020126120 is about 1006.6641964960.

Adding to 1020126120 its reverse (216210201), we get a palindrome (1236336321).

The spelling of 1020126120 in words is "one billion, twenty million, one hundred twenty-six thousand, one hundred twenty".