20303003011 has 4 divisors (see below), whose sum is σ = 20957938624. Its totient is φ = 19648067400.

The previous prime is 20303002999. The next prime is 20303003029. The reversal of 20303003011 is 11030030302.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11030030302 = 2 ⋅5515015151.

It is a cyclic number.

It is not a de Polignac number, because 20303003011 - 2¹³ = 20302994819 is a prime.

It is a super-2 number, since 2×20303003011² (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 = 20303002982 and 20303003000.

It is not an unprimeable number, because it can be changed into a prime (20303093011) 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, 327467760 + ... + 327467821.

It is an arithmetic number, because the mean of its divisors is an integer number (5239484656).

Almost surely, 2^20303003011 is an apocalyptic number.

20303003011 is a deficient number, since it is larger than the sum of its proper divisors (654935613).

20303003011 is an equidigital number, since it uses as much as digits as its factorization.

20303003011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 654935612.

The product of its (nonzero) digits is 54, while the sum is 13.

Adding to 20303003011 its reverse (11030030302), we get a palindrome (31333033313).

The spelling of 20303003011 in words is "twenty billion, three hundred three million, three thousand, eleven".