1002023011 has 8 divisors (see below), whose sum is σ = 1122660144. Its totient is φ = 886309920.

The previous prime is 1002023003. The next prime is 1002023041. The reversal of 1002023011 is 1103202001.

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

It is a cyclic number.

It is not a de Polignac number, because 1002023011 - 2³ = 1002023003 is a prime.

It is a super-2 number, since 2×1002023011² = 2008100229147012242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1002023041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1230580 + ... + 1231393.

It is an arithmetic number, because the mean of its divisors is an integer number (140332518).

Almost surely, 2^1002023011 is an apocalyptic number.

1002023011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1002023011 is a deficient number, since it is larger than the sum of its proper divisors (120637133).

1002023011 is a wasteful number, since it uses less digits than its factorization.

1002023011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2462021.

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

The square root of 1002023011 is about 31654.7470531672. The cubic root of 1002023011 is about 1000.6738827800.

Adding to 1002023011 its reverse (1103202001), we get a palindrome (2105225012).

The spelling of 1002023011 in words is "one billion, two million, twenty-three thousand, eleven".