1020200110011 has 24 divisors (see below), whose sum is σ = 1488348372576. Its totient is φ = 673340515200.

The previous prime is 1020200109967. The next prime is 1020200110049. The reversal of 1020200110011 is 1100110020201.

It is a happy number.

It is not a de Polignac number, because 1020200110011 - 2³⁰ = 1019126368187 is a prime.

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

1020200110011 is a modest number, since divided by 110011 gives 10202 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 1020200109975 and 1020200110002.

It is not an unprimeable number, because it can be changed into a prime (1020200100011) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3177561 + ... + 3483861.

It is an arithmetic number, because the mean of its divisors is an integer number (62014515524).

Almost surely, 2^{1020200110011} is an apocalyptic number.

1020200110011 is a deficient number, since it is larger than the sum of its proper divisors (468148262565).

1020200110011 is a wasteful number, since it uses less digits than its factorization.

1020200110011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310003 (or 310000 counting only the distinct ones).

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

Adding to 1020200110011 its reverse (1100110020201), we get a palindrome (2120310130212).

The spelling of 1020200110011 in words is "one trillion, twenty billion, two hundred million, one hundred ten thousand, eleven".