1012043045 has 16 divisors (see below), whose sum is σ = 1312615920. Its totient is φ = 744643584.

The previous prime is 1012043041. The next prime is 1012043047. The reversal of 1012043045 is 5403402101.

It can be written as a sum of positive squares in 8 ways, for example, as 106213636 + 905829409 = 10306^2 + 30097^2 .

It is a cyclic number.

It is not a de Polignac number, because 1012043045 - 2² = 1012043041 is a prime.

It is a super-2 number, since 2×1012043045² = 2048462249865744050, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012043041) 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, 10100 + ... + 46109.

It is an arithmetic number, because the mean of its divisors is an integer number (82038495).

Almost surely, 2^1012043045 is an apocalyptic number.

It is an amenable number.

1012043045 is a deficient number, since it is larger than the sum of its proper divisors (300572875).

1012043045 is a wasteful number, since it uses less digits than its factorization.

1012043045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56504.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 1012043045 is about 31812.6239879706. The cubic root of 1012043045 is about 1003.9983403014.

Adding to 1012043045 its reverse (5403402101), we get a palindrome (6415445146).

The spelling of 1012043045 in words is "one billion, twelve million, forty-three thousand, forty-five".