1031444045509 has 16 divisors (see below), whose sum is σ = 1133087587200. Its totient is φ = 934547556096.

The previous prime is 1031444045507. The next prime is 1031444045521. The reversal of 1031444045509 is 9055404441301.

It is a cyclic number.

It is not a de Polignac number, because 1031444045509 - 2¹ = 1031444045507 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1031444045503) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3199297 + ... + 3506905.

It is an arithmetic number, because the mean of its divisors is an integer number (70817974200).

Almost surely, 2^{1031444045509} is an apocalyptic number.

1031444045509 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1031444045509 is a deficient number, since it is larger than the sum of its proper divisors (101643541691).

1031444045509 is a wasteful number, since it uses less digits than its factorization.

1031444045509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315324.

The product of its (nonzero) digits is 172800, while the sum is 40.

The spelling of 1031444045509 in words is "one trillion, thirty-one billion, four hundred forty-four million, forty-five thousand, five hundred nine".