1001045012 has 48 divisors (see below), whose sum is σ = 1963289664. Its totient is φ = 442656000.

The previous prime is 1001044999. The next prime is 1001045029. The reversal of 1001045012 is 2105401001.

It is a super-2 number, since 2×1001045012² = 2004182232100160288, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 942962 + ... + 944022.

It is an arithmetic number, because the mean of its divisors is an integer number (40901868).

Almost surely, 2^1001045012 is an apocalyptic number.

It is an amenable number.

1001045012 is a deficient number, since it is larger than the sum of its proper divisors (962244652).

1001045012 is a wasteful number, since it uses less digits than its factorization.

1001045012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1640 (or 1638 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 14.

The square root of 1001045012 is about 31639.2953777419. The cubic root of 1001045012 is about 1000.3482160648.

Adding to 1001045012 its reverse (2105401001), we get a palindrome (3106446013).

The spelling of 1001045012 in words is "one billion, one million, forty-five thousand, twelve".