10021020023011 has 4 divisors (see below), whose sum is σ = 10023164478792. Its totient is φ = 10018875567232.

The previous prime is 10021020023009. The next prime is 10021020023017. The reversal of 10021020023011 is 11032002012001.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10021020023011 - 2¹ = 10021020023009 is a prime.

It is a super-2 number, since 2×10021020023011² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10021020022982 and 10021020023000.

It is not an unprimeable number, because it can be changed into a prime (10021020023017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1072220881 + ... + 1072230226.

It is an arithmetic number, because the mean of its divisors is an integer number (2505791119698).

Almost surely, 2^{10021020023011} is an apocalyptic number.

10021020023011 is a deficient number, since it is larger than the sum of its proper divisors (2144455781).

10021020023011 is an equidigital number, since it uses as much as digits as its factorization.

10021020023011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2144455780.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 10021020023011 its reverse (11032002012001), we get a palindrome (21053022035012).

The spelling of 10021020023011 in words is "ten trillion, twenty-one billion, twenty million, twenty-three thousand, eleven".