1011433320044 has 96 divisors (see below), whose sum is σ = 2137705758720. Its totient is φ = 409548642048.

The previous prime is 1011433320017. The next prime is 1011433320061. The reversal of 1011433320044 is 4400233341101.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1011433319995 and 1011433320022.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16452107 + ... + 16513469.

It is an arithmetic number, because the mean of its divisors is an integer number (22267768320).

Almost surely, 2^{1011433320044} is an apocalyptic number.

1011433320044 is a gapful number since it is divisible by the number (14) 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 1011433320044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1068852879360).

1011433320044 is an abundant number, since it is smaller than the sum of its proper divisors (1126272438676).

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

1011433320044 is a wasteful number, since it uses less digits than its factorization.

1011433320044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61839 (or 61837 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 1011433320044 its reverse (4400233341101), we get a palindrome (5411666661145).

The spelling of 1011433320044 in words is "one trillion, eleven billion, four hundred thirty-three million, three hundred twenty thousand, forty-four".