10211113020 has 24 divisors (see below), whose sum is σ = 28591116624. Its totient is φ = 2722963456.

The previous prime is 10211112991. The next prime is 10211113027. The reversal of 10211113020 is 2031111201.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 10211112987 and 10211113005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10211113027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85092549 + ... + 85092668.

It is an arithmetic number, because the mean of its divisors is an integer number (1191296526).

Almost surely, 2^10211113020 is an apocalyptic number.

10211113020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10211113020 is an abundant number, since it is smaller than the sum of its proper divisors (18380003604).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10211113020 is a wasteful number, since it uses less digits than its factorization.

10211113020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170185229 (or 170185227 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 12.

Adding to 10211113020 its reverse (2031111201), we get a palindrome (12242224221).

The spelling of 10211113020 in words is "ten billion, two hundred eleven million, one hundred thirteen thousand, twenty".