20211010011 has 12 divisors (see below), whose sum is σ = 30730190920. Its totient is φ = 12764848320.

The previous prime is 20211010007. The next prime is 20211010033. The reversal of 20211010011 is 11001011202.

It is a happy number.

It is not a de Polignac number, because 20211010011 - 2² = 20211010007 is a prime.

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 = 20211009975 and 20211010002.

It is not an unprimeable number, because it can be changed into a prime (20211010081) 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 11 ways as a sum of consecutive naturals, for example, 59096350 + ... + 59096691.

Almost surely, 2^20211010011 is an apocalyptic number.

20211010011 is a deficient number, since it is larger than the sum of its proper divisors (10519180909).

20211010011 is a wasteful number, since it uses less digits than its factorization.

20211010011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118193066 (or 118193063 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 20211010011 its reverse (11001011202), we get a palindrome (31212021213).

The spelling of 20211010011 in words is "twenty billion, two hundred eleven million, ten thousand, eleven".