1020440403411 has 32 divisors (see below), whose sum is σ = 1692478706688. Its totient is φ = 537294819840.

The previous prime is 1020440403397. The next prime is 1020440403413. The reversal of 1020440403411 is 1143040440201.

It is not a de Polignac number, because 1020440403411 - 2⁹ = 1020440402899 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1020440403413) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 69952971 + ... + 69967556.

It is an arithmetic number, because the mean of its divisors is an integer number (52889959584).

Almost surely, 2^{1020440403411} is an apocalyptic number.

1020440403411 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1020440403411 is a deficient number, since it is larger than the sum of its proper divisors (672038303277).

1020440403411 is a wasteful number, since it uses less digits than its factorization.

1020440403411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139920571.

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 1020440403411 its reverse (1143040440201), we get a palindrome (2163480843612).

The spelling of 1020440403411 in words is "one trillion, twenty billion, four hundred forty million, four hundred three thousand, four hundred eleven".