1011440435023 has 8 divisors (see below), whose sum is σ = 1036203381360. Its totient is φ = 986681949120.

The previous prime is 1011440434997. The next prime is 1011440435041. The reversal of 1011440435023 is 3205340441101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1011440435023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1011440434982 and 1011440435000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011440435053) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 653733 + ... + 1565326.

It is an arithmetic number, because the mean of its divisors is an integer number (129525422670).

Almost surely, 2^{1011440435023} is an apocalyptic number.

1011440435023 is a deficient number, since it is larger than the sum of its proper divisors (24762946337).

1011440435023 is a wasteful number, since it uses less digits than its factorization.

1011440435023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2230217.

The product of its (nonzero) digits is 5760, while the sum is 28.

Adding to 1011440435023 its reverse (3205340441101), we get a palindrome (4216780876124).

The spelling of 1011440435023 in words is "one trillion, eleven billion, four hundred forty million, four hundred thirty-five thousand, twenty-three".