1020344043 has 16 divisors (see below), whose sum is σ = 1371315200. Its totient is φ = 674822016.

The previous prime is 1020344021. The next prime is 1020344089. The reversal of 1020344043 is 3404430201.

It is not a de Polignac number, because 1020344043 - 2⁸ = 1020343787 is a prime.

It is a super-2 number, since 2×1020344043² = 2082203932171171698, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1020344443) 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, 216771 + ... + 221427.

It is an arithmetic number, because the mean of its divisors is an integer number (85707200).

Almost surely, 2^1020344043 is an apocalyptic number.

1020344043 is a deficient number, since it is larger than the sum of its proper divisors (350971157).

1020344043 is a wasteful number, since it uses less digits than its factorization.

1020344043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5226.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 1020344043 is about 31942.8245933261. The cubic root of 1020344043 is about 1006.7358737975.

Adding to 1020344043 its reverse (3404430201), we get a palindrome (4424774244).

The spelling of 1020344043 in words is "one billion, twenty million, three hundred forty-four thousand, forty-three".