20010202011 has 10 divisors (see below), whose sum is σ = 29891783372. Its totient is φ = 13340134620.

The previous prime is 20010201989. The next prime is 20010202033. The reversal of 20010202011 is 11020201002.

It is an interprime number because it is at equal distance from previous prime (20010201989) and next prime (20010202033).

It is not a de Polignac number, because 20010202011 - 2⁶ = 20010201947 is a prime.

It is a super-3 number, since 3×20010202011³ (a number of 32 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20010201984 and 20010202002.

It is not an unprimeable number, because it can be changed into a prime (20010272011) 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 9 ways as a sum of consecutive naturals, for example, 123519685 + ... + 123519846.

Almost surely, 2^20010202011 is an apocalyptic number.

20010202011 is a deficient number, since it is larger than the sum of its proper divisors (9881581361).

20010202011 is an equidigital number, since it uses as much as digits as its factorization.

20010202011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247039543 (or 247039534 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 20010202011 its reverse (11020201002), we get a palindrome (31030403013).

The spelling of 20010202011 in words is "twenty billion, ten million, two hundred two thousand, eleven".