1043005255513 has 16 divisors (see below), whose sum is σ = 1161445372416. Its totient is φ = 930129390720.

The previous prime is 1043005255447. The next prime is 1043005255529. The reversal of 1043005255513 is 3155525003401.

It is a cyclic number.

It is not a de Polignac number, because 1043005255513 - 2³⁷ = 905566302041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1043005255553) 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, 1967956 + ... + 2441077.

It is an arithmetic number, because the mean of its divisors is an integer number (72590335776).

Almost surely, 2^{1043005255513} is an apocalyptic number.

1043005255513 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1043005255513 is a deficient number, since it is larger than the sum of its proper divisors (118440116903).

1043005255513 is a wasteful number, since it uses less digits than its factorization.

1043005255513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4409664.

The product of its (nonzero) digits is 45000, while the sum is 34.

The spelling of 1043005255513 in words is "one trillion, forty-three billion, five million, two hundred fifty-five thousand, five hundred thirteen".