10111204020 has 48 divisors (see below), whose sum is σ = 28316752128. Its totient is φ = 2695808640.

The previous prime is 10111204013. The next prime is 10111204021. The reversal of 10111204020 is 2040211101.

It is a happy number.

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 = 10111203987 and 10111204005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10111204021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 385525 + ... + 410915.

It is an arithmetic number, because the mean of its divisors is an integer number (589932336).

Almost surely, 2^10111204020 is an apocalyptic number.

10111204020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10111204020 is an abundant number, since it is smaller than the sum of its proper divisors (18205548108).

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

10111204020 is a wasteful number, since it uses less digits than its factorization.

10111204020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32040 (or 32038 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 10111204020 its reverse (2040211101), we get a palindrome (12151415121).

The spelling of 10111204020 in words is "ten billion, one hundred eleven million, two hundred four thousand, twenty".