1012530043 has 4 divisors (see below), whose sum is σ = 1157177200. Its totient is φ = 867882888.

The previous prime is 1012530037. The next prime is 1012530053. The reversal of 1012530043 is 3400352101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3400352101 = 21407 ⋅158843.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1012530043 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1012530043.

It is not an unprimeable number, because it can be changed into a prime (1012530053) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72323568 + ... + 72323581.

It is an arithmetic number, because the mean of its divisors is an integer number (289294300).

Almost surely, 2^1012530043 is an apocalyptic number.

1012530043 is a deficient number, since it is larger than the sum of its proper divisors (144647157).

1012530043 is an equidigital number, since it uses as much as digits as its factorization.

1012530043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144647156.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 1012530043 is about 31820.2772300934. The cubic root of 1012530043 is about 1004.1593567653.

Adding to 1012530043 its reverse (3400352101), we get a palindrome (4412882144).

The spelling of 1012530043 in words is "one billion, twelve million, five hundred thirty thousand, forty-three".