1001012023 has 8 divisors (see below), whose sum is σ = 1121527440. Its totient is φ = 885415680.

The previous prime is 1001011987. The next prime is 1001012087. The reversal of 1001012023 is 3202101001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1001012023 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001012123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1229338 + ... + 1230151.

It is an arithmetic number, because the mean of its divisors is an integer number (140190930).

Almost surely, 2^1001012023 is an apocalyptic number.

1001012023 is a deficient number, since it is larger than the sum of its proper divisors (120515417).

1001012023 is a wasteful number, since it uses less digits than its factorization.

1001012023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2459537.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 1001012023 is about 31638.7740438848. The cubic root of 1001012023 is about 1000.3372272650.

Adding to 1001012023 its reverse (3202101001), we get a palindrome (4203113024).

The spelling of 1001012023 in words is "one billion, one million, twelve thousand, twenty-three".