1020110142440 has 64 divisors (see below), whose sum is σ = 2297976912000. Its totient is φ = 407559230208.

The previous prime is 1020110142433. The next prime is 1020110142449. The reversal of 1020110142440 is 442410110201.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (1020110142449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 146796086 + ... + 146803034.

It is an arithmetic number, because the mean of its divisors is an integer number (35905889250).

Almost surely, 2^{1020110142440} is an apocalyptic number.

1020110142440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1020110142440 is an abundant number, since it is smaller than the sum of its proper divisors (1277866769560).

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

1020110142440 is a wasteful number, since it uses less digits than its factorization.

1020110142440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10794 (or 10790 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 1020110142440 its reverse (442410110201), we get a palindrome (1462520252641).

The spelling of 1020110142440 in words is "one trillion, twenty billion, one hundred ten million, one hundred forty-two thousand, four hundred forty".