20301023011 has 4 divisors (see below), whose sum is σ = 20435467024. Its totient is φ = 20166579000.

The previous prime is 20301022999. The next prime is 20301023021. The reversal of 20301023011 is 11032010302.

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 20301023011 - 2⁷ = 20301022883 is a prime.

It is a super-2 number, since 2×20301023011² (a number of 21 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 = 20301022982 and 20301023000.

It is not an unprimeable number, because it can be changed into a prime (20301023021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67221780 + ... + 67222081.

It is an arithmetic number, because the mean of its divisors is an integer number (5108866756).

Almost surely, 2^20301023011 is an apocalyptic number.

20301023011 is a deficient number, since it is larger than the sum of its proper divisors (134444013).

20301023011 is a wasteful number, since it uses less digits than its factorization.

20301023011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134444012.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 20301023011 its reverse (11032010302), we get a palindrome (31333033313).

The spelling of 20301023011 in words is "twenty billion, three hundred one million, twenty-three thousand, eleven".