1020110256 has 60 divisors (see below), whose sum is σ = 3114432360. Its totient is φ = 309123840.

The previous prime is 1020110251. The next prime is 1020110261. The reversal of 1020110256 is 6520110201.

It is an interprime number because it is at equal distance from previous prime (1020110251) and next prime (1020110261).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1020110251) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 320421 + ... + 323588.

It is an arithmetic number, because the mean of its divisors is an integer number (51907206).

Almost surely, 2^1020110256 is an apocalyptic number.

1020110256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1020110256 is an abundant number, since it is smaller than the sum of its proper divisors (2094322104).

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

1020110256 is a wasteful number, since it uses less digits than its factorization.

1020110256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 644034 (or 644025 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 1020110256 is about 31939.1649233351. The cubic root of 1020110256 is about 1006.6589782512.

Adding to 1020110256 its reverse (6520110201), we get a palindrome (7540220457).

Subtracting 1020110256 from its reverse (6520110201), we obtain a palindrome (5499999945).

The spelling of 1020110256 in words is "one billion, twenty million, one hundred ten thousand, two hundred fifty-six".